Scientific Calendar

PLEASE NOTE: Due to ongoing concerns about the COVID-19 virus, ICTP conferences, schools and workshops are now being conducted mostly online until further notice. Please check ICTP's Scientific Calendar frequently for updates.

NEW: Attend one of ICTP's virtual seminars.

Each year, ICTP organizes more than 60 international conferences, workshops, and numerous seminars and colloquia.

Interested in attending an activity? Complete an online application form: Events in the scientific calendar that have an "smr" number require participants to apply online. Click on the activity and complete the online application form.
Have a question about an "smr" activity? Please contact the organizers at smrXXXX (x being the 4-digit number of the activity)@ictp.it
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External organisations can pay for and organize their own high-level scientific and cultural events at ICTP. Details for these "Hosted Activities" are available in the Logistic Guidelines for Hosted Activities (pdf download).
Travel fellowships for ICTP conferences and workshops are available.

Showing 195 records

Europe/Rome Lorenzo Piroli (ENS, Paris, France) ABSTRACT The concept of causality, stating that physical actions cannot propagate in space at an arbitrary speed, can be captured for qudit systems by the notion of Quantum Cellular Automata (QCA), defined as unitary maps preserving locality of observables. In this talk, I will show that QCA can be identified, in any dimension and geometry, with special tensor network operators, yielding a general connection between causality and bounds on entanglement production in the form of area laws. I will stress the importance of unitarity, by discussing generalizations of our results for different classes of non-unitary quantum channels. Finally, I will show how the set of QCA can be extended to a larger class of deterministic maps via LOCC (local operations and classical communication) and illustrate implications on state-preparation protocols and classification of phases of matter. Talk based on: [1] LP and J. I. Cirac, Quantum Cellular Automata, Tensor Networks, and Area Laws, PRL 125, 190402 (2020). [2] LP, G. Styliaris, and J. I. Cirac, Quantum Circuits Assisted by LOCC: Transformations and Phases of Matter, PRL 127, 220503 (2021). Virtual ICTP pio@ictp.it

Seminar

11 Jan 2022

@ Virtual

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Quantum Cellular Automata, Tensor Networks, and Area Laws

Speaker(s): Lorenzo Piroli (ENS, Paris, France)

Seminar Start Time: 11:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/97557286340 Meeting ID: 975 5728 6340 Passcode: 701308 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. ZOOM Meeting ICTP pio@ictp.it

Seminar

11 Jan 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

HECAP Seminar: Bootstrap bounds on AdS quantum gravity

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Dalimil Mazac (IAS, Princeton)

Seminar Start Time: 16:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/95354632925 Meeting ID: 953 5463 2925 Passcode: 948784 Hybrid presence c/o Budinich Lecture Hall + zoom meeting. PLEASE NOTE CHANGE IN VENUE!!! ZOOM Meeting ICTP pio@ictp.it

Seminar

13 Jan 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

HECAP Seminar: Stringy AdS3/CFT2 correspondence

Address: PLEASE NOTE CHANGE IN VENUE!!!

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Lorenz Eberhardt (IAS, Princeton)

Abstract. I will review recent progress in the understanding of the AdS3/CFT2 correspondence with pure NS-NS flux. I will explain the computation of the spectrum and the correlation functions of the worldsheet theory and how they are matched with the recently proposed dual CFT. I will also discuss the simplifications that occur in the tensionless limit where the background AdS3xS3xT4 is dual to the usual symmetric orbifold of T4. In this limit, the correspondence is under sufficient control to probe AdS/CFT non-perturbatively and say something about the emergence of geometry and background independence in string theory.

Seminar Start Time: 16:00

Europe/Rome Giulia Semeghini (Harvard University, USA) ABSTRACT Learning how to create, study, and manipulate highly entangled states of matter is key to understanding exotic phenomena in condensed matter and high energy physics, as well as to the development of useful quantum computers. In this talk I will discuss recent experiments where we demonstrated the realization of a quantum spin liquid phase using Rydberg atoms on frustrated lattices and a new architecture based on the coherent transport of entangled atoms through a 2D array. Combining these results with novel technical tools on atom array platforms could open a broad range of possibilities for the exploration of entangled matter, with powerful applications in quantum simulation and information. Virtual ICTP pio@ictp.it

Seminar

18 Jan 2022

@ Virtual

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): New frontiers in quantum simulation and computation with neutral atom arrays

Room: Zoom

Speaker(s): Giulia Semeghini, Harvard University, USA

Seminar Start Time: 14:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/95491998775 Meeting ID: 954 9199 8775 Passcode: 567308 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. ZOOM Meeting ICTP pio@ictp.it

Seminar

18 Jan 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

HECAP Seminar: Non-semisimple TQFTs and BPS q-series

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Pavel Putrov (ICTP)

Abstract. In my talk I will describe a relation between the 3-manifold invariant of Costantino--Geer--Patureau-Mirand, constructed from a non-semisimple category of representations of a quantum group, and counting of BPS states in a 6d (2,0) superconformal field theory compactified on a 3-manifold with a topological twist.

Seminar Start Time: 16:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/99734359909 Meeting ID: 997 3435 9909 Passcode: 444010 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. ZOOM Meeting ICTP pio@ictp.it

Seminar

20 Jan 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 1: "What Gravitational Waves tell us about the Universe"

Address: Strada Costiera 11 34141 Trieste Italy

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Prof. Alessandra Buonanno, Max Planck Institute for Gravitational Physics, Germany

Seminar Start Time: 16:00

Seminar

28 Jan 2022

@ Online and in the BLH

Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 2: "The Making of High-Precision Gravitational Waves"

Address: Strada Costiera 11 34141 Trieste Italy

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Prof. Alessandra Buonanno, Max Planck Institute for Gravitational Physics, Germany

Seminar Start Time: 16:00

Seminar

31 Jan 2022

@ Online and in the BLH

Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 3: "Gravitational Waves as Probes of Gravity and Fundamental Physics"

Address: Strada Costiera 11 34141 Trieste Italy

QLS SEMINAR - Activity driven pattern formation in microtubule network and cell membrane

Address: Via Beirut 2

Speaker(s): Subhadip GHOSH - Theoretical Physics Department, Faculty of Science, Zagreb University, Croatia

Support E-Mail: qls@ictp.it

Seminar Start Time: 14:00

Europe/Rome Please Register in advance for this meeting: https://zoom.us/meeting/register/tJUtceChpjoqGtSIFcTsOUO2mjL_M8RxHil9 After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: After the overview lecture of December, we start going through the material in more detail: We introduce the Hilbert scheme of points on a surface, define moduli spaces of stable sheaves, and state the Vafa-Witten formula for the Euler numberts of moduli spaces of rank 2 sheaves. Â The moduli spaces of sheaves are in general singular, of a dimension different from the expected dimension. We introduce perfect obstruction theories and the virtual fundamental class. Integrating cohomology classes against this virtual fundamental class allows to define virtual versions of enumerative invariants, which behave similar to the invariants of smooth varieties, among them a virtual version of the Euler number. We conjecture that the Vafa-Witten formula computes this virtual Euler number. ------------------- The seminar will consist of lecture series by Alina Marian and by Lothar Goettsche (of which the abstracts are below), and talks by Postdocs and Faculty on their research. Toward the cohomology and Chow rings of moduli spaces of sheaves (Alina Marian) A seminar direction will examine the problem of understanding Lie algebra actions on the cohomology and Chow rings of moduli spaces of sheaves interms of the Chern classes of the universal sheaf. One classical action on cohomology is the Lefschetz sl(2) associated with an ample divisor class on a projective variety. For moduli spaces of sheaves over curves and surfaces, Grothendieck's standard conjectures are often known to hold, in particular Lefschetz sl(2) actions should be expressible via algebraic correspondences. Nevertheless there are very few explicit algebraic constructions of the Lefschetz operators. Progress in this direction would have important applications, not least to holomorphic symplectic geometry; the seminar will explain this circle of ideas. --------- Virtual invariants of moduli spaces of sheaves on surfaces and Vafa-Witten invariants (Lothar Goettsche) Another direction of the seminar will be virtual invariants of moduli spaces of sheaves on surfaces and Vafa-Witten invariants. Moduli spaces of sheaves on surfaces with $p_g>0$ tend to be singular, but they carry a so-called perfect obstruction theory, which allows to define virtual versions of the standard topological invariants of smooth varieties, e.g. the virtual Euler number. In 1994 Vafa and Witten gave a formula for "Euler numbers" of moduli spaces of rank 2 sheaves on surfaces. Recently a mathematical definition of these Vafa-Witten invariants was given in arbitrary rank by Tanaka and Thomas in terms of moduli spaces of Higgs pairs. We will review the definition of these invariants and their relation to virtual Euler numbers of moduli spaces of sheaves on surfaces, and show computations of these invariants leading to conjectural generating functions in terms of modular functions. Online ICTP pio@ictp.it

Seminar

2 Feb 2022

@ Online

Mathematics

ICTP/IGAP seminar on Algebraic Geometry: Moduli spaces of sheaves, Vafa-Witten formula and virtual invariants

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar GOETTSCHE (ICTP)

This will be a hybrid seminar. All are very welcome to join either online or in person (if provided with a green pass). Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/94999244104 Meeting ID: 949 9924 4104 Passcode: 206943 Join by Skype for Business https://zoom.us/skype/94999244104 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. ZOOM Meeting ICTP pio@ictp.it

Seminar

3 Feb 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

HECAP Seminar: Corrections to 3d class R theories and 4d central charges from higher-derivative supergravity

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Valentin Reys (KU Leuven, Belgium)

Abstract. In this talk, I will discuss subleading corrections to the large-N partition functions of 3d SCFTs of class R, obtained from wrapping M5-branes on certain 3-manifolds. The corrections are obtained in a holographic setting by considering higher-derivative terms in the bulk 4d gauged supergravity theory. The framework can be used to study the 3d-3d correspondence relating the partition functions of class R theories to topological invariants in Chern-Simons theory on the wrapped 3-manifolds. This higher-derivative logic can also be extended to five bulk dimensions, where we use it to derive subleading corrections to the central charges of 4d N=2 SCFTs. Finally, I will discuss the details of these corrections for the black string, and the corrected holographic RG flow across dimensions.

Seminar Start Time: 14:30

Europe/Rome Please Register in advance for this meeting: https://zoom.us/meeting/register/tJwsf-6vrzMvGtO8WGt0fydElasfiUYlnMB7 After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: I will first complete the discussion of the SL (2) action on the Chow ring of an abelian variety from last time, drawing a few beautiful conclusions. In the second part of the lecture, I will start to discuss the Chow class of the diagonal in moduli-theoretic settings. ---------------------------- The seminar will consist of lecture series by Alina Marian and by Lothar Goettsche (of which the abstracts are below), and talks by Postdocs and Faculty on their research. Toward the cohomology and Chow rings of moduli spaces of sheaves (Alina Marian) A seminar direction will examine the problem of understanding Lie algebra actions on the cohomology and Chow rings of moduli spaces of sheaves interms of the Chern classes of the universal sheaf. One classical action on cohomology is the Lefschetz sl(2) associated with an ample divisor class on a projective variety. For moduli spaces of sheaves over curves and surfaces, Grothendieck's standard conjectures are often known to hold, in particular Lefschetz sl(2) actions should be expressible via algebraic correspondences. Nevertheless there are very few explicit algebraic constructions of the Lefschetz operators. Progress in this direction would have important applications, not least to holomorphic symplectic geometry; the seminar will explain this circle of ideas. --------- Virtual invariants of moduli spaces of sheaves on surfaces and Vafa-Witten invariants (Lothar Goettsche) Another direction of the seminar will be virtual invariants of moduli spaces of sheaves on surfaces and Vafa-Witten invariants. Moduli spaces of sheaves on surfaces with $p_g>0$ tend to be singular, but they carry a so-called perfect obstruction theory, which allows to define virtual versions of the standard topological invariants of smooth varieties, e.g. the virtual Euler number. In 1994 Vafa and Witten gave a formula for "Euler numbers" of moduli spaces of rank 2 sheaves on surfaces. Recently a mathematical definition of these Vafa-Witten invariants was given in arbitrary rank by Tanaka and Thomas in terms of moduli spaces of Higgs pairs. We will review the definition of these invariants and their relation to virtual Euler numbers of moduli spaces of sheaves on surfaces, and show computations of these invariants leading to conjectural generating functions in terms of modular functions. Online ICTP pio@ictp.it

Seminar

9 Feb 2022

@ Online

Mathematics

ICTP/IGAP seminar on Algebraic Geometry: Representations of the diagonal for moduli spaces of sheaves

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Alina MARIAN (Northeastern University)

This will be a hybrid seminar. All are very welcome to join either online or in person (if provided with a green pass). Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Abstract: Giancarlo Cella will talk about Virgo and AdV+ physics and results, followed by Stavros Katsanevas who will explain EGO, the infrastructure around Virgo, the relationships with multi messenger, environment, inclusion Art and Science, and also illustrate future projects, 3rd Generation, LISA and lunar projects. The event will take place in a hybrid format in the Budinich Lecture Hall on the ICTP campus, and will also be livestreamed from the ICTP website. You can also register in advance for this webinar on Zoom: https://zoom.us/webinar/register/WN_C7D47UlPQ46Wt8NvNOdTSg After registering, you will receive a confirmation email containing information about joining the webinar. All are welcome to attend. Biosketches of the speakers: Stavros Katsanevas, professor exceptional class at University of Paris, is the director of the European Gravitational Observatory (EGO) hosting the Gravitational antenna Virgo in Cascina, Pisa. He has been also director of the Laboratory of Astroparticle Physics and Cosmology in Paris and deputy director of the National Institute of Nuclear and Particle Physics of CNRS and first chairman of the European Consortium of Astroparticle Physics (APPEC). He has published in particle and astroparticle physics and he is also working at the interface between Physics and Geoscience (Laboratory UnivEarths, Paris), and Art and Science (exhibition Il Ritmo dello Spazio, Museo della Grafica, Pisa). He has received the order of Chevalier de l’Ordre National du Mérite in France, and the Physics Prize of the Academy of Athens for his work on supersymmetry. Giancarlo Cella is a senior researcher of the National Institute of Nuclear Physics (INFN). He worked in high energy physics and lattice gauge theory. His main current research interests are gravitational waves, both from a phenomenological and detection perspective. It is a member of the Virgo collaboration since 1996. Currently is the data analysis coordinator of Virgo, co-chair of the LIGO-Virgo-KAGRA collaboration data analysis council, and group leader of the Virgo Pisa group. ICTP ICTP pio@ictp.it

Colloquium

9 Feb 2022

@ ICTP

ICTP Colloquium by Prof. Stavros Katsanevas and Prof. Giancarlo Cella: EGO and VIRGO: The Past, Present, and Future of the Physics of Gravity Waves

Address: Strada Costiera 11 34100 Trieste

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Prof. Stavros Katsanevas, Director European Gravitational Observatory, EGO and Prof. Giancarlo Cella, Data Analysis Coordinator, VIRGO

Colloquium Start Time: 16:00

Europe/Rome Karsten Reuter (Fritz-Haber-Institut der Max-Planck-Gesellschaft, Germany) Abstract: Electrocatalytic processes gain an ever-increasing importance for a future sustainable energy system. Electrolytic generation of hydrogen, electroreduction of CO2 to synthetic fuels or the reverse fuel cell processes are key components for the required storage, transport and provision of energy on a global scale. Unfortunately, the transition to corresponding energy technologies is still largely impeded by insufficient efficiencies or stabilities of hitherto employed materials or devices. Many of these limitations arise at the involved solid-liquid interfaces, which often undergo strong structural and compositional changes in the operating device. Such operando evolution presents already a severe challenge to the predictive-quality modeling and simulation of working thermal catalysts [1]. In interfacial electrocatalysis, this is further aggravated by the simultaneous need to reliably capture solvent dynamics and the long-range electrostatics in the diffuse double layer (DL). The present state-of-the-art is therefore largely characterized by harsh approximations. Operando evolution is generally not treated, solvation effects are often ignored and the applied bias at best considered through thermodynamic potentials. In particular, the prevalent computational hydrogen electrode (CHE) approach considers the surface electronic structure to constantly remain at the potential of zero charge (PZC) and therefore precludes capacitive charging effects by construction. In recent years, implicit solvation approaches have experienced a renaissance in the context of interfacial electrochemistry [2], not least because in conjunction with ab initio thermodynamics they allow to mimic the polarization of the electrode at potentials beyond the PZC. In this talk, I will tutorially introduce this context and corresponding fully-grand canonical (FGC) calculations [3]. Specifically, I will discuss the application to compute thermodynamic cyclic voltammograms (CVs) and demonstrate that only FGC calculations are able to capture non-Nernstian peak shifts and other DL-effects on the CV shape [4]. Relevant for catalysis is in particular the ability to predict potential-induced variations of adsorption energies and concomitant effects on detailed reaction mechanisms. [1] A. Bruix, J.T. Margraf, M. Andersen, and K. Reuter, Nature Catal. 2, 659 (2019). [2] S. Ringe, N.G. Hörmann, H. Oberhofer, and K. Reuter, Chem. Rev. (2022); https://pubs.acs.org/doi/abs/10.1021/acs.chemrev.1c00675 [3] N.G. Hoermann, N. Marzari, and K. Reuter, npj Comp. Mat. 6, 136 (2020). [4] N.G. Hörmann and K. Reuter, J. Chem. Theory Comput. 17, 1782 (2021); J. Phys. Condens. Matter 33, 264004 (2021). Register in advance at: https://zoom.us/meeting/register/tJYod-GuqTIpEtE3QMQwutbC6MjGxPDurgtl After registering, you will receive a confirmation email containing information about joining the meeting. Hybrid: Budinich LH and Zoom ICTP pio@ictp.it

Seminar

10 Feb 2022

@ Hybrid: Budinich LH and Zoom

Condensed Matter and Statistical Physics

CMSP News and Views Seminar Series: First-Principles based Modelling of Electrocatalysis Beyond the Potential of Zero Charge

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Karsten Reuter (Fritz-Haber-Institut der Max-Planck-Gesellschaft, Germany)

Seminar Start Time: 16:00

Europe/Rome Dario Poletti (Singapore University of Technology and Design, Singapore) The understanding of the relaxation of large quantum systems has received an important boost from the point of view of pure state quantum statistical mechanics, and in particular from the eigenstate thermalization hypothesis. At the same time, the dynamics of quantum systems has been investigated by out of time ordered correlators. Interestingly it was shown, using hydrodynamic theory, that such correlators relax algebraically in the presence of conserved quantities. Here we show how such slow relaxation can be expected from the eigenstate thermalization hypothesis. At the same time, conserved quantities can lead to the phenomenon of pre-thermalization. Here we show that considering two large non-integrable systems weakly coupled to each other, one can show that in the thermodynamic limit a steady current between the two will emerge, and that this current is typical. Hybrid: Budinich LH + Zoom ICTP pio@ictp.it

Seminar

15 Feb 2022

@ Hybrid: Budinich LH + Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): From conserved quantities to the emergence of slow relaxation and steady currents

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Dario Poletti (Singapore University of Technology and Design, Singapore)

Seminar Start Time: 11:00

Europe/Rome Lecturer: Don Zagier Course Type: SISSA PhD Course Academic Year: 2021-2022 Period: mid February to mid March 2022 Research Group: SISSA-Geometry and Mathematical Physics Duration: 20 h Register in advance for this meeting: https://unesco-org.zoom.us/meeting/register/tJUvcO2qqDgtGtMYJCHfEtIForecwtoJIK4r You will receive a confirmation email containing information about joining the meeting. Description: In every branch of mathematics, one is sometimes confronted with the problem of evaluating an infinite sum numerically and trying to guess its exact value, or of recognizing the precise asymptotic law of formation of a sequence of numbers {A_n} of which one knows, for instance, the first couple of hundred values. The course will tell a number of ways to study both problems, some relatively standard (like the Euler-Maclaurin formula and its variants) and some much less so, with lots of examples. Here are three typical examples: 1. The slowly convergent sum sum_{j=0}^\infty (\binom{j+4/3}{j})^{-4/3} arose in the work of a colleague. Evaluate it to 250 decimal digits. 2. Expand the infinite sum \sum_{n=0}^\infty (1-q)(1-q^2)...(1-q^n) as \sum A_n (1-q)^n, with first coefficients 1, 1, 2, 5, 15, 53, ... Show numerically that A_n is asymptotic to n! * a * n^b * c for some real constants a, b and c, evaluate all three to high precision, and recognize their exact values. 3. The infinite series H(x) = \sum_{k=1}^\infty sin(x/k)/k converges for every complex number x. Compute this series to high accuracy when x is a large real number, so that the series is highly oscillatory. Next lecture: 12 Wed 23-Mar 14.00 - 15.30 Online ICTP pio@ictp.it

Seminar

15 Feb 2022 - 23 Mar 2022

@ Online

Mathematics

SISSA/IGAP Lecture on "Standard and less standard asymptotic methods"

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Don Zagier (ICTP-MPIM-SISSA)

These will be hybrid courses. All are very welcome to join either online or in person (if provided with a green pass). Venue: Budinich Lecture Hall (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome An ICTP Virtual Meeting Strongly correlated many-body systems constitute a topic of great theoretical and experimental relevance, since they are connected to many interesting open questions in condensed matter physics, and provide one of the main avenues of research to find and understand new quantum materials. This conference is intended to provide a platform for young researchers (postdocs and advanced Ph.D. students) working on these topics to promote their research, share their knowledge, exchange ideas, and establish scientific collaborations. Profiting from the benefits of the online format, speakers from different countries will join, and each session will contain an introductory talk delivered by an experienced researcher. The conference is expected to encourage collaborative work between theorists and experimentalists, as well as to compensate for the lack of face-to-face exchanges that would normally take place without the current COVID-19 situation. Topics: Computational and analytical techniques for condensed matter systems Quantum phases and critical phenomena Strongly correlated materials Non-equilibrium quantum dynamics Topological phases and phenomena Quantum information Quantum devices Speakers: A. ANGELONE, Sorbonne, France F. CALEFFI, SISSA, Italy M. CAPONE, SISSA, Italy W. J. CHETCUTI, TII, UAE M. COLLURA, SISSA, Italy A. DI PAOLO, MIT, USA L. DING, MIT, USA M. FERRARETTO, SISSA, Italy P. FROMHOLZ, Basel, Switzerland D. HORVATH, SISSA, Italy G. LAMI, SISSA, Italy A. LEROSE, SISSA, Italy Z. LI, ICTP, Italy G. MARCHEGIANI, TII, UAE A. MARRAZZO, UniTS, Italy U. MARZOLINO, INFN, Italy E. MOHARRAMZADEH GOLIAEI, ICTP, Italy I. MORERA NAVARRO, Barcelona University, Spain H. P. OJEDA COLLADO, La Sapienza University, Italy F. PAOLETTI, SISSA, Italy A. PAVLOV, ICTP, Italy J. POLO, TII, UAE N. RANABHAT, SISSA, Italy A. RODRIGUEZ, ICTP, Italy S. ROSTAMI, ICTP, Italy F. SCAZZA, UniTS, Italy A. SCAZZOLA, SISSA, Italy S. SCOPA, SISSA, Italy M. SECLÌ, SISSA, Italy N. SERIANI,ICTP, Italy M. SORBA, SISSA, Italy G. SORMANI, ICTP, Italy M. STEFANINI, SISSA, Italy F. SURACE, ICTP, Italy A. TIRELLI, SISSA, Italy E. TIRRITO, SISSA, Italy L. TOSI, Balseiro Institute, Argentina Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

16 Feb 2022 - 18 Feb 2022

@ Online -

Condensed Matter and Statistical Physics

Second Adriatic Conference on Strongly Correlated Systems (and beyond) | (smr 3688)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Andrea RICHAUD (SISSA), Giuliano CHIRIACÒ (ICTP), Ana Laura GRAMAJO (ICTP), Local Organiser: Rosario Fazio (ICTP)

Support E-Mail: smr3688@ictp.it

**DEADLINE: 14/02/2022**

Europe/Rome Online Please Register in advance for this meeting: https://zoom.us/meeting/register/tJMpcOytrDooH9Sk3Bb3_FcxTLG_Wb1G_OhS After registering, you will receive a confirmation email containing information about joining the meeting. Presence ICTP Leonardo Da Vinci Building - Budinich Lecture Hall (only if provided with a green pass) Abstract: In the last lecture we introduced moduli spaces of sheaves on surface and then defined perfect obstruction theories and virtual invariants. We start this lecture by applying this to define the virtual Euler numbers of moduli spaces of sheaves, and their refinement by the virtual chi_y-genus. We will then introduce the moduli space of Higgs pairs and use it to define Vafa-Witten invariants. This also requires a review of localization and virtual localization with respect to $C^*$-actions. Online ICTP pio@ictp.it

Seminar

16 Feb 2022

@ Online

Mathematics

ICTP/IGAP seminar on Algebraic Geometry: Refined invariants and Vafa-Witten invariants

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar GOETTSCHE (ICTP)

This will be a hybrid seminar. All are very welcome to join either online or in person (if provided with a green pass). Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Clyde A. Daly Jr. (Haverford College, U.S.A.) Abstract Many complex macroscopic phenomena have their origins in microscopic, molecule and atom level interactions. Using techniques like molecular dynamics and machine learning, connections can be made between these two scales of observation. In this talk, I will showcase the power of these techniques in four cases. First, the solvation properties of carbon dioxide in ionic liquids are examined using one dimensional and two dimensional infrared spectroscopy. Second, the structure of the hydrated proton is elucidated by combining molecular dynamics with infrared and Raman spectroscopy. Third, molecular dynamics is used to examine the behavior of nanoparticles when interacting with biomolecules. Fourth, machine learning is used to develop design rules for creating sustainable nanotechnologies. In my new position at Haverford College, I am extending these techniques to study more complex related systems. To register in advance: https://zoom.us/meeting/register/tJwrc-GrrTovEtFdbsZp9-GM9GPmKDYcYRup via Zoom ICTP pio@ictp.it

Seminar

16 Feb 2022

@ via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Modeling Complex Phenomena with Machine Learning and Molecular Dynamics

Speaker(s): Clyde A. Daly Jr. (Haverford College, U.S.A.)

Seminar Start Time: 16:30

Europe/Rome Join Zoom Meeting <a class="moz-txt-link-freetext" href="https://zoom.us/j/96353049286" style="box-sizing: border-box; background-color: transparent; color: rgb(14, 113, 235); text-decoration: none; font-family: Lato, Helvetica, Arial; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word;" target="_blank">https://zoom.us/j/96353049286 Meeting ID: 963 5304 9286 Passcode: 011022 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

17 Feb 2022

@ Zoom Meeting + in presence

Cosmology

HECAP Seminar: Cosmological Collider Physics at Low Speeds

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Sadra Jazayeri (IAP, Paris)

Abstract. The main objective of the cosmological bootstrap program is to derive cosmological correlators on the boundary of a quasi-dS space from basic principles such as unitarity and analyticity. In this talk we show how to extend the reach of this program by going beyond the dS invariant setup: we adapt the bootstrap methods to situations where the inflation field has a reduced speed of sound and has sizeable couplings to additional massive fields during inflation. We leverage the cosmological optical theorem and cosmological boundary equations to find analytical expressions for sample contributions to the two- and three-point functions of the inflation field as a result of the exchange of a massive scalar. We find new shapes of non-gaussianity with novel oscillatory features in the mildly squeezed limit, which are not present in the standard cosmological collider physics signal.

Seminar Start Time: 14:30

Europe/Rome ICTP and SISSA, in collaboration with the partner institutions of the International Master Course in Physics of Complex Systems, are organizing the Spring College on the Physics of Complex Systems from 21 February to 18 March 2022. Many complex systems in physics, biology, engineering and economics are characterized by a large number of interacting degrees of freedom, giving rise to a non-trivial collective behavior. The theoretical and computational tools for a quantitative analysis of complex systems are often rooted in modern theoretical physics. The Spring College on the Physics of Complex Systems aims to expose students to a selection of topics at the forefront of research during an intensive, 4-week programme. It consists of 5 courses. The Spring College is part of the Master programme in the Physics of Complex Systems. The 2022 Spring College will be held online, with limited in person participation by invitation, and it is open to qualified Master and PhD students. Lecturers and Courses: J.S. WEITZ, Georgia Tech, USA “Quantitative viral dynamics” D. WOLPERT, Santa Fe Institute, USA “Stochastic thermodynamics and Computation” T. SHARPEE, Salk Institute, USA “Hyperbolic geometry and information maximization in biological circuits” S. RUFFO, SISSA, Italy & N. DEFENU, ETH Zurich, Switzerland “Statistical mechanics of long-range interacting systems” F. CECCONI & A. VULPIANI, La Sapienza, Italy “Chaos: From Simple Models to Complex Systems” Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

21 Feb 2022 - 18 Mar 2022

@ Online -

Quantitative Life Sciences

Spring College in the Physics of Complex Systems | (smr 3690)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Alfredo BRAUNSTEIN (Politecnico di Torino), Angelo ROSA (SISSA), Local Organiser: Matteo Marsili (ICTP)

Cosponsor(s): International School for Advanced Studiessissa3, Politecnico di Torinopolito3, Le master international Physics of Complex Systemsmpcs, Université Franco Italienneufi

Support E-Mail: smr3690@ictp.it

**DEADLINE: 07/02/2022**

Europe/Rome Professor Neena Gupta*, a mathematician at the Indian Statistical Institute in Kolkata, was awarded the 2021 DST-ICTP-IMU Ramanujan Prize for Young Mathematicians from Developing Countries. Professor Gupta received the Prize for her outstanding work in affine algebraic geometry and commutative algebra, in particular for her solution of the Zariski cancellation problem for affine spaces. The DST-ICTP-IMU Ramanujan Prize committee, composed of eminent mathematicians from around the world, commented that Gupta's work "shows impressive algebraic skill and inventiveness". ICTP administers the DST-ICTP-IMU Ramanujan Prize jointly with the Department of Science and Technology (DST, Government of India), and the International Mathematical Union (IMU). The prize is awarded annually to a researcher from a developing country who is less than 45 years of age on 31 December of the year of the award, and who has conducted outstanding research in a developing country. Researchers working in any branch of the mathematical sciences are eligible. The 2021 Prize Ceremony will be an integral part of a day dedicated to Srinivasa Ramanujan, with a talk by the Prize winner, Professor Gupta, on "Ga-Actions and their Applications". The events will take place in the Budinich Lecture Hall on the ICTP Campus, as well as online. The celebrations will also include a special lecture by Prof. Don Zagier, Ramanujan International Chair, on "Ramanujan and the Partition Function". Register in advance for this webinar: https://zoom.us/webinar/register/WN_tZa_YjhxSLKTQEoadWamFg After registering, you will receive a confirmation email containing information about joining the webinar. Refreshments will be served on the Leonardo Building Terrace after the event for those participating in presence. For more information about the Prize, see: https://www.ictp.it/about-ictp/prizes-awards/the-dst-ictp-imu-ramanujan-prize.aspx * Neena Gupta is a Professor at the Indian Statistical Institute, Kolkata, working in the area of Commutative Algebra and Affine Algebraic Geometry. She is known for providing the complete solution to Zariski Cancellation Problem for affine spaces in positive characteristic, developing a general theory on a certain family of affine threefolds which reveals surprising connections between various problems on affine spaces, constructing examples of non-cancellative varieties, establishing $K$-theoretic properties of the ring of invariants of a $G_a$-action on an affine space and determining the structure of locally Laurent polynomial algebras, studying questions on finite generation of algebras arising out of Hilbert's fourteenth problem, obtaining results and examples on locally nilpotent derivations, characterisation of affine spaces, separable affine forms, fibrations by punctured lines, affine fibrations, retractions of polynomial algebras and related topics. She is a Fellow of the Indian Academy of Sciences and a recipient of the Shanti Swarup Bhatnagar Prize in Mathematical Sciences awarded by the Council of Scientific and Industrial Research (CSIR), Government of India. Online and in the BLH ICTP pio@ictp.it

Ceremony

21 Feb 2022

@ Online and in the BLH

DST-ICTP-IMU Ramanujan Prize Ceremony & Ramanujan International Chair Lecture

Address: Strada Costiera 11 34051 Trieste, Italy

Room: Leonardo Building - Budinich Lecture Hall

The 2021 Prize Ceremony will be an integral part of a day dedicated to Srinivasa Ramanujan, with a talk by the Prize winner, Professor Gupta, on "Ga-Actions and their Applications". The celebrations will also include a special lecture by Prof. Don Zagier, Ramanujan International Chair, on "Ramanujan and the Partition Function".

Europe/Rome Diego Pontello (SISSA) Abstract: The last decades have seen groundbreaking progress in non-perturbative aspects of quantum field theory (QFT) using methods from quantum information theory. Most of these results have been so far restricted to relativistic QFT because constraints from Lorentz symmetry and causality play a key role in the above approaches. Much less is known in non-relativistic QFT, in particular, in the continuum QFT itself. In this talk, I will present the results of the entanglement entropies of an interval on the infinite line for a free fermionic spinless Schrödinger field theory at finite density, which is a non-relativistic model with Lifshitz exponent z=2. In this case, the entanglement spectrum can be exactly obtained and expressed in terms of prolate spheroidal wave functions. Analogously, the entropies can be also studied by means of the Fredholm determinant of the two-point correlator, which turns out to be the so-called tau function of a Painlevé V differential equation and it can be expressed in terms of Virasoro irregular conformal blocks of c=1. I will also discuss generalizations of these results to a class of free fermionic Lifshitz models labeled by integer dynamical exponent z. Hybrid: Room 128, SISSA (via Bonomea 265) + via Zoom ICTP pio@ictp.it

Seminar

22 Feb 2022

@ Hybrid: Room 128, SISSA (via Bonomea 265) + via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Entanglement entropies in free Schrödinger field theory at finite density

Speaker(s): Diego Pontello (SISSA)

Seminar Start Time: 11:00

Europe/Rome Join Zoom Meeting https://zoom.us/j/475819702 If you haven't registered for previous QLS webinars, please contact qls@ictp.it to obtain the PASSWORD for this zoom meeting. In many physical systems, we are faced with an interaction between mechanisms that evolve at very different time scales. In this seminar, we will consider Markovian processes with such characteristics, and we will exploit the time scale separation to obtain an effective Markovian dynamics on a reduced state space. In particular, compared to existing studies, we will introduce a more general formalism. Finally, as a privileged example, we consider the limit of the strong continuous measure of quantum systems described by a Belavkin diffusive equation. Zoom Meeting and ICTP ICTP pio@ictp.it

Seminar

22 Feb 2022

@ Zoom Meeting and ICTP

Quantitative Life Sciences , Condensed Matter and Statistical Physics

QLS-CMSP Joint Seminar - Homogeneization of Markovian process and application to quantum continuous measurement

Address: Via Beirut, 2

Room: Central Area, 2nd floor, old SISSA building

Speaker(s): Raphael Chetrite - Laboratoire J.A. Dieudonne, Université de Nice Sophia-Antipolis

Support E-Mail: qls@ictp.it

Seminar Start Time: 15:30

Europe/Rome Ali Naji (Institute for Research in Fundamental Sciences, Iran) Abstract: Coulomb interactions contribute significantly to the effective forces that act between molecular constituents of life such as proteins, biopolymers and membranes. Macromolecular and other contact surfaces in the soft and biomatter contexts are often heterogeneously (or even randomly) charged and their interactions are mediated through aqueous Coulomb fluids that often contain highly charged species entailing statistical correlations and electrostatic surface couplings. Yet, electrostatic theories dealing with these systems mostly rely on textbook models where surface charge distributions are treated as uniform (or regularly patterned) and the surrounding Coulomb fluid is treated as a mean-field medium described by traditional Poisson-Boltzmann-type approximations. Non-mean-field effects become relevant especially when the Coulomb fluid involves multivalent ions. In this talk, I will discuss how the theoretical advances made in describing electrostatics of non-mean-field phenomena in the said contexts (e.g., formation of large bundles of like-charged biopolymers such as F-actin and microtubules and condensation of DNA in bulk and in viruses) have led to a major paradigm shift in the electrostatic theory of charged fluids where likes can attract, opposites can repel and net-neutral (albeit randomly charged) objects can do both. When strong electrostatic couplings transpire in the presence of quenched surface charge disorder, an otherwise standard electrical double layer can become antifragile and lose entropy upon increasing the disorder strength even as it becomes thermodynamically more stable. Zoom link to advance registration: https://zoom.us/meeting/register/tJwkdO2srzgjG9eJIldapkTpbYszm6QmiPHk via Zoom ICTP pio@ictp.it

Seminar

23 Feb 2022

@ via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Electrostatics with correlations and quenched disorder with implications for biomolecular interactions

Speaker(s): Ali Naji (Institute for Research in Fundamental Sciences, Iran)

Seminar Start Time: 11:00

Europe/Rome Maciej Lewenstein graduated as MSc at Warsaw University in 1978 and PhD at Universität Essen in 1983. He was research fellow in Essen, at Harvard, Commisariat a l'Énergie Atomique in Saclay and at Joint Institute for Laboratory Astrophysics at Boulder. He was on faculty of Centre for Theoretical Physics in Warsaw (1986-1994), CEA in Saclay (1995-1998), of the Leibniz University Hannover (1998-2005). In 2005 he moved to Catalonia as ICREA Research Professor at ICFO in Castelldefels. His interests include quantum optics, quantum physics, quantum information, atto-second science, and statistical physics. He is an acclaimed jazz writer and critic, author of “Polish Jazz Recordings and Beyond”. He published over 600 papers, cited in WoS over 42000 times with H-index=101. Recipient of 3 ERC AdGs. Abstract: Quantum closed systems, when perturbed or quenched, tend to “thermalize” in an ergodic way: the reduced density matrix of a block of the system in well approximated by the Gibbs-Boltzmann canonical ensemble, at least for averages of local observables and their not too high moments. There are several exceptions from this situation: i) Systems with multiple constants of motion are described by generalized Gibbs-Boltzmann ensembles; ii) Many-body localization (MBL) occurs in certain disordered systems; iii) MBL may occur also in non-disordered systems; iv) Local conservation laws, like the Gauss law, may prevent thermalization, for instance in Lattice Gauge Theory (LGT) models; v) Systems may exhibit quantum many-body scars, i.e. low entropy states that cause “weak” ergodicity breaking; vi) The latter occur frequently in confined LGT, but also deconfined ones. This will be an online event. Please register at the following Zoom link: https://zoom.us/webinar/register/WN_WifhpYYDR5i67rQsWkVsAw After registration, you will receive a confirmation email. The Colloquium will also be livestreamed from the ICTP website. All are most welcome to attend. Online ICTP pio@ictp.it

Colloquium

23 Feb 2022

@ Online

Speaker(s): Raffaele Tito D'Agnolo (IPHT, France)

Abstract. Dark Matter was discovered more than 90 years ago through its gravitational effects. It makes up 80% of the matter in our Universe and about a quarter of its present energy density. We have spent decades trying to detect it in the laboratory, but to date its microscopic origin remains mysterious. The vast majority of our theoretical and experimental effort has been devoted to the exploration of relatively heavy dark matter candidates, with masses comparable to particles that we can produce at our highest energy colliders. In this talk I will review how in the last five to ten years a new perspective has emerged in particle theory, shifting our attention to ultralight dark matter candidates, in particularly the axion. This has generated a flurry of experimental activity, with a few pioneering efforts now setting up prototypes, and new ideas appearing almost weekly on the arXiv. I will review both the theoretical appeal of these dark matter candidates and the new ideas proposed to detect them experimentally. Furthermore, ultralight dark matter is well described in the laboratory as a coherent classical field. Its detection has interesting overlaps with that of high-frequency gravitational waves.

Seminar Start Time: 11:00

Europe/Rome A virtual seminar by Davide Poletto with Raul Palma and Federica Foglini jointly co-organized by the Science, Technology and Innovation Unit & the Marie Curie Library Abstract: International recommendations, general principles, and policy documents on open science are highly inspirational, building general consensus and ideational policy frameworks. However, their operationalization requires practical and handy working tools for citizens, scientists and researchers. This is the case for RELIANCE digital assets, a suite of innovative and interconnected services integrated into EOSC- HUB and used by the EOSC scientific communities to support thematic and multidisciplinary research in Earth Science and beyond. Biosketch: Davide Poletto holds a European doctorate in Sustainable Development Governance Affairs from the University Ca’ Foscari of Venice (Italy). He has been collaborating with various national and international institutions, organizations, and scientific networks. He served UNESCO for 12 years as consultant/programme/project Officer in Science, focusing on scientific cooperation in Europe and South-East Europe. He has been the promoter of innovative trainings, activities, and operational solutions applied to DRM, sustainable energy, and open science by leveraging on several European Research and Innovation Projects and using UNESCO designated sites as laboratories for innovation. He currently serves as an international consultant and as an active environmental campaigner. He is part of the team of the H2020 RELIANCE project under Alpha consult UK, leading the task “Epistemic community networking and capacity building” in cooperation with Poznan Supercomputing and Networking Centre (PSNC), CNR-ISMAR, The University of Oslo and INGV in Rome. The talk will be followed by a question/answer session. Register in advance for this webinar on Zoom: <span class="click-input-copy-spec ellipse-input" style="box-sizing: border-box; max-width: 485px; height: 28px; overflow: hidden; white-space: nowrap; color: rgb(0, 0, 0); display: inline-block; border: 0px; text-overflow: ellipsis; padding: 0px; cursor: pointer;">https://zoom.us/webinar/register/WN_1pPT7Q6lRWCJlJPo4yqDfQ After registering, you will receive a confirmation email containing information about joining the webinar. Online ICTP pio@ictp.it

Seminar

28 Feb 2022

@ Online

Operationalizing UNESCO Recommendation on Open Science through EOSC – RELIANCE digital assets for sustainable development: drawing insights from scientists’ practical experience

Speaker(s): Davide Poletto (Alpha Consult, UK)Raul Palma (PSNC, Poland)Federica Foglini (CNR-ISMAR, Italy)

Seminar Start Time: 15:00

Europe/Rome Join Zoom Meeting: https://zoom.us/j/99891916180 Meeting ID: 998 9191 6180 Password: 013652 Kindly note that the maximum number of participants in presence is 24 pp. ZOOM Meeting + in presence ICTP pio@ictp.it

Seminar

2 Mar 2022

@ ZOOM Meeting + in presence

Strings and Higher Dimensional Theories

HECAP Seminar: Heterotic Quantum Cohomology

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Eirik Eik Svanes (University of Stavanger, Norway)

Seminar Start Time: 14:30

Europe/Rome hybrid seminar Register in advance for this meeting: https://zoom.us/meeting/register/tJcvdOCuqDIoH9xPSv9b8G-Yf_J_K4BSm9Ji After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: We define Vafa-Witten invariants via formal virtual localization. First we review localization and virtual localization with respect to $C^*$-actions. We describe the fixpoint locus of the $C^*$ action on the Vafa-Witten moduli space, and its decomposition into components corresponding to the partitions of the rank r. We introduce the Vafa-Witten generating function, and its decomposition corresponding to the components of the fix point locus. In particular we have the horizontal component, corresponding to the partition (r), which is the moduli space of stable sheaves, and the vertical component, corresponding to the partition (1,..,1). We show that the contribution to the horizontal component to the VW invariants is the virtual Euler number of the moduli space of sheaves. We state the Vafa-Witten predictions for the modularity of the Vafa-Witten generating function. Online ICTP pio@ictp.it

Seminar

2 Mar 2022

@ Online

Mathematics

ICTP/IGAP Algebraic Geometry seminar on "Localization and virtual localization, and Vafa-Witten generating function"

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar GOETTSCHE (ICTP)

This will be a hybrid seminar. All are very welcome to join either online or in person (if provided with a green pass). Venue: Luigi Stasi lecture room (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Carter Tribley Butts (University of California, Irvine, USA) Abstract: Advances in computational chemistry have allowed us to simulate molecular systems of ever-increasing complexity over ever longer time scales, but making sense of the resulting trajectory data remains a challenge. Here, I describe a number of ways that kernel learning can be used as a tool for gaining insights from molecular dynamics simulations, with a particular eye to identifying features of use for subsequent computational or experimental investigation. Specific applications include segmentation of macromolecular conformation spaces, identifying and characterizing separatrices separating trajectories bound for distinct product states, and characterizing the primary axes of variation in protein active site conformations. In conjunction with the latter, I also describe how kernels can be used to capture feature spaces of particular theoretical interest, as illustrated by an application to the analysis of the active site dynamics of the SARS-CoV-2 main protease. To register in advance: https://zoom.us/meeting/register/tJUvcO-oqTkrG91WUn3xM_tgiiko17DrOOFc via Zoom ICTP pio@ictp.it

Seminar

2 Mar 2022

@ via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Some Kernel Tricks for Analyzing Molecular Trajectories

Speaker(s): Carter Tribley Butts (University of California, Irvine, USA)

Seminar Start Time: 16:30

Europe/Rome Join Zoom meeting: https://zoom.us/j/97163939097 Meeting ID: 971 6393 9097 Passcode: 460785 Hybrid presence c/o Euler Lecture + zoom meeting. Please note that the maximum number of participants in presence is 30 pp. ZOOM Meeting + in presence ICTP pio@ictp.it

Seminar

3 Mar 2022

@ ZOOM Meeting + in presence

Cosmology

HECAP Seminar: Analytic false-vacuum decay rate in the thin-wall approximation

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Lorenzo Ubaldi (INFN, Trieste)

Abstract. The decay rate of the false vacuum in scalar field theory has the form A Exp(-B). In a famous paper from 1977 Coleman laid down the theory to compute the coefficient B. In a subsequent paper with Callan, they set up the recipe to compute the pre-factor A, but did not manage to compute it explicitly. In their own words: "we are not able to obtain a closed-form expression for A; we are stymied by an obdurate functional determinant". In this talk I explain how my collaborators and I recently found such a closed-form expression for A in the thin-wall approximation.

Seminar Start Time: 14:30

Europe/Rome This informal talk will discuss quantitative approaches to problems involving human dynamics, such as 1) fitting Langevin dynamics to time-series of prehistorical societies; 2) Predicting the next pandemic using war games with human role players; and (3) Block chain, ecosystems of AIs, and the arrival of the singularity. ICTP ICTP pio@ictp.it

Seminar

3 Mar 2022

@ ICTP

Quantitative Life Sciences

QLS Seminar - Sciences involving humans

Address: Via Beirut, 2

Room: Common area, 2nd floor, old SISSA building

Speaker(s): David Wolpert (Santa Fe Insitute)

Support E-Mail: qls@ictp.it

Seminar Start Time: 14:30

Europe/Rome This huddle brings together a community of scientists working at the boundary between the physical chemistry of water, data-science, statistical physics, stochastic thermodynamics and finally heat transport to tackle and develop interdisciplinary themes across the respective themes relevant to engineering and biological applications. Topics: Molecular Dynamics Stochastic Theory Liquid Water Thermal Conductivity Collective Phenomena Speakers: J. CLOPÉS LLAHÍ, ICTP, Italy S. DI PINO, CSC-CONICET, Argentina D. DONADIO, University of California, Davis, USA D. SCHERLIS, INQUIMAE, Buenos Aires, Argentina A. RAJABPOUR, IKU, Tehran, Iran R. RABANI, Sharif University, Iran ICTP ICTP pio@ictp.it

Activity

7 Mar 2022 - 30 Jun 2022

@ ICTP

QLS/CMSP Huddle on Water, Heat and Stochastic Theory | (smr 3762)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Ali HASSANALI (ICTP, Italy), Asja JELIC (ICTP, Italy), Alex RODRIGUEZ (ICTP, Italy), Edgar ROLDAN (ICTP, Italy), Uriel Nicolas MORZAN (ICTP, Italy), Local Organiser: Ali Hassanali (ICTP)

Support E-Mail: smr3762@ictp.it

Participation in this huddle is by invitation only, and no general applications can be accepted.**DEADLINE: 22/05/2022**

Seminar

8 Mar 2022

@ ZOOM Meeting

Phenomenology of Particle Physics

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Icy, Moist, and Seasonal: Polar Amplification in Simple and Complex Climates

Speaker(s): FELDL Nicole, UC Santa Cruz, USA

Seminar Start Time: 15:30

Seminar

15 Mar 2022

@ Zoom Meeting

Strings and Higher Dimensional Theories

CERN/ICTP Joint Seminar: Emergent times in holographic duality: Part 2

Speaker(s): Sam Leutheheusser (MIT)

Seminar Start Time: 16:00

Europe/Rome Martina Stella (ICTP) Abstract: Understanding excited states and their relaxation plays a critical role in spectroscopy as well as in improving the performance of technological devices. For instance, being able to predict where excited states lie for molecules embedded in crystals can be crucial for guiding experimentalists in locating excitation sources. From a technological perspective an interesting example is thermally activated delayed fluorescence (TADF). It represents a promising mechanism for designing the next generation of OLED (Organic Light Emitting Diodes) materials being fully organic and less environmental harmful than previous generation. <div class="section" style="background-color: rgb(100.000000%, 100.000000%, 100.000000%)"> TADF emission is based on inverse inter-system crossing from triplet state to singlet states. These excitations have shown to exhibit an intricate mixture of charge-transfer and local nature. Modelling TADF (e.g to identify the best performing material) as well as locating excited states, thus, requires a methodology able to provide high accuracy while explicitly including environmental effects. However, developing a versatile theoretical approach for the characterisation of excitations can be challenging due to the complexity of the methods available and the variety of sources of error associated with them. We are developing a multi-scale approach within the BigDFT code where we combine the needed accuracy with the ability of treating big systems, which would allow one to go beyond implicit models. BigDFT is designed to run on parallel architectures and can treat large systems while ensuring high, controllable precision. As a first step towards a robust methodology, we assess the performance of a novel promising constrained-DFT (T-CDFT) approach we recently developed while I was at Imperial College London and compare the results with standard methods (e.g. TDDFT) and simulation conditions. Such investigation is conducted on a diverse set of molecules (e.g. TADFs, acenes) in order to cover various classes of excitations. This phase is carried out by also developing portable jupyter-notebooks for the analysis of excitations. 1) Daubechies wavelets for linear scaling density functional theory,S Mohr, LE Ratcliff, P Boulanger, L Genovese - The Journal of chemical physics, 2014, 2)Fragment approach to constrained density functional theory calculations using Daubechies wavelets, LE Ratcliff, L Genovese, S Mohr, T Deutsch - The Journal of chemical physics, 2015, 3)Transition-based Constrained DFT for the robust and reliable treatment of excitations in molecular systems, M Stell, K Thapa, L Genovese and LE Ratcliff, JCTC, submitted , 2021. Link for Zoom advance registration: https://zoom.us/meeting/register/tJYsc-6vqjIvE93WmBUS1eReomlWFjskhyvv via Zoom ICTP pio@ictp.it

Seminar

16 Mar 2022

@ via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Towards a systematic multi-scale method for excitations in molecular materials in the BigDFT code

Speaker(s): Martina Stella (ICTP)

Seminar Start Time: 11:00

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJIkfuuprjgjGNcgVmSaMlPCelgrDAqtiUSK After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: We describe the components corresponding of the fixpoint locus on the Vafa-Witten moduli space. We introduce the Vafa-Witten generating function, and its decomposition corresponding to the components of the fixpoint locus. In particular we have the horizontal component, corresponding to the partition (r), which is the moduli space of stable sheaves, and the vertical component, corresponding to the partition (1,..,1). We show that the contribution to the horizontal component to the VW invariants is the virtual Euler number of the moduli space of sheaves. We state the Vafa-Witten predictions for the modularity of the Vafa-Witten generating function. We state the structure theorem of Laaracker for the vertical Vafa-Witten invariants, and give conjectural formulas for the vertical Vafa-Witten invariants. Finally we conjecture an analogue of Laaracker's structure theorem also for the horizontal invariants. Online ICTP pio@ictp.it

Seminar

16 Mar 2022

@ Online

Mathematics

ICTP/IGAP Algebraic Geometry Seminar on "Vertical Vafa-Witten invariants"

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar GOETTSCHE (ICTP)

Seminar Start Time: 16:00

Seminar

17 Mar 2022

@ Zoom Meeting

Phenomenology of Particle Physics

HECAP Seminar: A Tale of Eternal Inflation

Speaker(s): Tim Cohen (University of Oregon)

Seminar Start Time: 16:00

Europe/Rome An ICTP Virtual meeting Antimicrobial Resistance (AMR) represents a major challenge to public health worldwide. Mobile elements such as plasmids play a crucial role in Horizontal Gene Transfer (HGT) and AMR spread. Understanding plasmid evolution and mobility is fundamental to unravel the population genetics of plasmid-encoded genes, especially antibiotic genes. The combination of breakthroughs in sequencing and computational approaches has led to a new vision of the eco-evolutionary processes involved in HGT dynamics of pathogens. The Workshop will focus on modelling efforts to integrate genomic, experimental and computational results, to build a unified framework to tackle the expansion of plasmid borne AMR. Special focus will be put in the discussion on methods to go beyond point mutation- and tree- based phylogenetics in cases such as plasmids where HGT is the main evolutionary mechanism. The Workshop is aimed both at researchers working on plasmids and modellers with no previous experience on plasmids and/or AMR. Introductory lectures on bacterial evolution, population genetics and epidemiology and their applications to AMR and plasmids will be provided on the website. Speakers: J. ALDERLIESTEN, Utrecht University, Netherlands S. BEDHOMME, CEFE/CNRS, France M. BROCKHURST, University of Manchester, UK M. COSENTINO LAGOMARSINO, IFOM and University of Milan, Italy A. COUCE IGLESIAS, CBGP – Madrid, Spain T. DAGAN, Christian-Albrechts University of Kiel, Germany T. DIMITRIU, University of Exeter, UK S. DUXBURY, University of Warwick, UK J. P. HALL, University of Liverpool, UK J. HAWKEY, Monash University, Australia J. HUISMAN, ETH Zurich, Switzerland E. JAUNEIKAITE, Imperial College London, UK O. KOSTERLIZ, University of Washington, USA J. KRUG, University of Cologne, Germany S. LEHTINEN, ETH Zurich, Switzerland W. MATLOCK, University of Oxford, UK J.O. MCINERNEY, University of Nottingham, UK M. MOLARI, University of Basel, Switzerland R. MORAN, University of Birmingham, UK C. POLETTO, INSERM - Sorbonne University, France A. ROBERTS, Liverpool School of Tropical Medicine, UK A. SAN MILLAN, IRYCIS, Spain L. SHAW, University of Oxford, UK K. SMALLA, Julius Kühn-Institut (JKI), Germany W. VAN SCHAIK, University of Birmingham, UK Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

21 Mar 2022 - 25 Mar 2022

@ Online -

Workshop on Plasmids as Vehicles of Antimicrobial Resistance Spread | (smr 3761)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Alice LEDDA (Imperial College London, MRC GIDA and UKHSA, UK), Fernando DE LA CRUZ (University of Cantabriam, UK), Iqbal ZAMIN (EBI Cambridge, UK), Nick CROUCHER (Imperial College London, UK), Richard NEHER (University of Basel, Switzerland), Matteo MARSILI (ICTP, Italy), Local Organiser: Matteo Marsili (ICTP)

Cosponsor(s): Imperial College Londonicl2

Support E-Mail: smr3761@ictp.it

**DEADLINE: 15/03/2022**Applicants are encouraged to submit abstracts for contributed talk. A number of short oral presentation slots will be available for some of them upon selection.

Europe/Rome There is an increasing number of requests from Member States for assistance in the introduction of stereotactic radiotherapy and radiosurgery for intra-and extra-cranial targets. This workshop will assist clinical medical physicists to understand the complexities of this mode of radiotherapy. Modern radiotherapy has substantially increased the use of various forms of Stereotactic Radiotherapy (SRT), including Stereotactic Body Radiotherapy (SBRT) and Stereotactic Radiosurgery (SRS). For these techniques a high radiation dose is delivered in a reduced number of fractions. These treatments are not only performed with specialized, dedicated machines, but also with conventional, non-dedicated linear accelerators equipped with high resolution multi-leaf collimators. In radiotherapy, accurate dose delivered to the patient is essential. For conventional radiotherapy this has been achieved by internationally adopted codes of practice and standardized radiotherapy techniques. However, many of these techniques are not applicable for stereotactic radiotherapy. This course will instruct the participant on how to ensure the quality of stereotactic radiotherapy to provide patients with safe and effective treatments. Topics: Justification for using stereotactic radiotherapy (SRT) The physics of SRT with an emphasis on small field dosimetry Simulation and Treatment planning for SRT Treatment delivery of SRT to include the technologies, motion management and image guidance Radiobiology of SRT including fractionation and dose constraints Audits, Clinical trials and quality control Lecturers: K. CHELMINSKI, IAEA, Vienna, Austria L. CORDERO MENDEZ, IAEA, Vienna, Austria A. DIMITRIADIS, IAEA, Vienna, Austria E. LINDBAECK, Karolinska University Hospital, Stockholm, Sweden M. HEARD, IAEA, Vienna, Austria P. MANCOSU, HUMANITAS Cancer Center, Rozzano, Italy T. RITTER, McGuire VA Medical Center, Richmond, USA Prerequisites: This workshop is for clinically qualified medical physicists (CQMPs as per IAEA publication HHS-25) from United Nations, UNESCO or IAEA Member States who hold a postgraduate-level university degree, preferably in medical physics. The candidate should also have at least 3 years working experience in a hospital and must participate in stereotactic radiotherapy in the clinic. Participants should have an understanding of IAEA TRS-398, "Absorbed dose determination in external beam radiotherapy" and IAEA TRS-483, “Dosimetry of small static fields used in external beam radiotherapy”. The process of selection of participants might include a mandatory written examination. The workshop will be beneficial to clinically qualified medical physicists working in radiotherapy and employing treatment modalities using small fields such as SRT, SBRT and SRS. Registration: There is no registration fee. Seibersdorf - Austria ICTP pio@ictp.it

Activity

21 Mar 2022 - 25 Mar 2022

@ Seibersdorf - Austria

Joint ICTP-IAEA Workshop on Medical Physics Aspects of Stereotactic Radiotherapy Techniques | (smr 3692)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Mauro Carrara (IAEA), ICTP Scientific Contact: Renato Padovani (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea, American Association of Physicsts in Medicineaapm

Support E-Mail: smr3692@ictp.it

**DEADLINE: 13/01/2022**

Europe/Rome Antonio Sclocchi (Lausanne) Abstract: The jamming transition is a zero-temperature phenomenon related to disordered and glassy systems. Its critical behaviour has been characterized in the solution of the hard sphere model in infinite spatial dimensions, corresponding to a mean-field theory. In this talk, we consider soft-spheres with a linear repulsive potential and their mean-field model, i.e. the perceptron. We show that the jamming critical behaviour gets extended from the jamming point to an entire phase. We characterize this self-organized critical and marginally stable phase and we show the emergence of a symmetry in the critical exponents. In the last part of the talk, we will discuss jamming criticality in optimization problems and machine learning. Hybrid seminar ICTP pio@ictp.it

Seminar

22 Mar 2022

@ Hybrid seminar

Condensed Matter and Statistical Physics

@ Zoom Meeting + in presence

Strings and Higher Dimensional Theories

HECAP Seminar: Enstrophy and black hole supertranslations

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Natalia Pinzani Fokeeva (MIT)

Abstract. Enstrophy is an approximately conserved quantity in 2+1 dimensional non-relativistic fluids that implies an inverse energy cascade in turbulent flows. In this talk, I will present an algorithm on how to construct an enstrophy current for generic fluid flows (relativistic and non). In addition, I will show how a subset of certain horizon symmetries of 3+1 dimensional AdS black holes also leads to enstrophy conservation in the dual holographic fluid theory.

Seminar Start Time: 14:30

Europe/Rome Lecture 3 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract The prediction of fire danger conditions allows fire management agencies to implement fire prevention, detection and pre-suppression action plans before fire damages occur. However, in many countries fire danger rating relies on observed weather data, which only allows for daily environmental monitoring of fire conditions. Even when this estimation is enhanced with the combined use of satellite data, such as hot spots for early fire detection and land cover and fuel conditions, it normally only provides 4 to 6 h warnings. By using forecast conditions from advanced numerical weather models, early warning could be extended by up to 1–2 weeks, allowing for greater coordination of resource-sharing and mobilization within and across countries. Using 1 year of pre-operational service in 2017 and the Fire Weather Index (FWI), in this talk we assess the capability of the system to predict fire danger globally and analyse in detail three major events in Chile, Portugal and California. The analysis shows that the skill provided by an ensemble forecast system extends to more than 10 days when compared to the use of mean climate, making a case for extending the forecast range to the sub-seasonal to seasonal timescale. However, accurate FWI prediction does not translate into accuracy in the forecast of fire activity globally. Indeed, when all fires detected in 2017 are considered, including agricultural- and human-induced burning, high FWI values only occur in 50 % of the cases and are limited to the Boreal regions. Nevertheless, for very large events which were driven by weather conditions, FWI forecasts provide advance warning that could be instrumental in setting up management and containment strategies. Zoom Event ICTP pio@ictp.it

Seminar

29 Mar 2022

@ Zoom Event

QLS Seminar: Binary sequences and individual-based models applied to evolution

Address: Via Beirut, 2

Room: Central Area, 2nd floor, ex SISSA building

Speaker(s): Vitor M. Marquioni - Instituto de Fisica “Gleb Wataghin” Universidade Estadual de Campinas UNICAMP Campinas, Brazil

Support E-Mail: qls@ictp.it

Seminar Start Time: 14:30

Europe/Rome Register in advance for this meeting:https://zoom.us/meeting/register/tJcqduysqDIiHtBoh4yv-M_sL_FtUKINno3s After registering, you will receive a confirmation email containing information about joining the meeting. ICTP pio@ictp.it

Seminar

30 Mar 2022

Mathematics

ICTP/IGAP Algebraic Geometry Seminar on "On the cohomology of Quot schemes parametrizing torsion quotients on a smooth curve"

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Alina Marian, Northeastern U. USA

This will be a hybrid seminar. All are very welcome to join either online or in person (if provided with a green pass). Venue: Euler Lecture Room (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Join Zoom meeting: https://zoom.us/j/93946207753 Meeting ID: 939 4620 7753 Passcode: 348601 Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

31 Mar 2022

@ Zoom Meeting + in presence

Phenomenology of Particle Physics

HECAP Seminar: Gegenbauer's Twin

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Gauthier Durieux (CERN)

Abstract. Higgs precision measurements and resonance searches at the LHC have made sharper than ever the electroweak naturalness problem. In response, the particle physics community has begun to question symmetry-based solutions. We provide a new perspective by proposing a symmetry-based framework which does not require any fine-tuning to comply with current experimental observations. This is achieved by abandoning the additional constraint of minimality typically imposed on the structure of symmetry breaking. Single-Higgs coupling deviations of a few percent and trilinear self-coupling deviations of order one are irreducible in the natural parameter space.

Seminar Start Time: 14:30

Europe/Rome An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. The Computational School on Ab-initio Many-body Methods and Simulations with the Yambo Code will introduce many-body perturbation theory (MBPT) approaches and specifically to first-principles excited-state simulations using the YAMBO code. The target participants are graduate students, postdocs, and researchers who are interested in learning or in improving their knowledge and skills to calculate electronic and optical properties of materials, beyond the well-known DFT limitations and using an efficient, highly parallelized and accurate many-body computational tool. Both theoretical and technical lectures will be offered as well as dedicated hands-on sessions where students will learn how to use the code for materials of current research interest and how to optimize its use in a parallel environment. Several post-processing tools for the analysis of the results will be also introduced and practically applied. General topics will include self-energy and quasiparticles concepts, the GW approximation, and the Bethe-Salpeter equation, all placed in the context of and linked with experimental measurements (photoemission, absorption, photoluminescence). At variance with previous editions, this school will present some advanced lectures such as: new algorithms developed to deal with electron-phonon interactions, real time evolution of equations of motion, time dependent polarization in terms of the Berry phase, and computation of non-linear optical properties. The specific usage in massively parallel environments equipped with modern accelerated video cards (GPU’s) will be introduced. Participants are required to have a pre-existing background in DFT and in running DFT simulations. Lecturers: C. ATTACCALITE, CNRS, Aix-Marseille University, France A. FERRETTI, CNR-NANO, Italy M. GATTI, CNRS École Polytechnique, France M. GRUNING, Queen’s University Belfast, UK A. GUANDALINI, CNR-NANO, Italy D. A. LEON VALIDO, CNR-NANO, Italy A. MARINI, CNR-ISM, Italy P. MELO, University of Utrecht, Netherlands B. MONSERRAT SANCHEZ, University of Cambridge, UK F. PALEARI, CNR-NANO, Italy M. PALUMMO, Università di Roma Tor Vergata, Italy S. RAFAELY-ABRAMSON, Weizmann Institute, Israel D. SANGALLI, CNR-ISM, Italy P. SHEVERDYAEVA, CNR-ISM, Italy D. VARSANO, CNR-NANO, Italy Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. Due to the pandemic period the school is designed to allow participants to join part in person and part online. Female scientists are encouraged to apply. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

4 Apr 2022 - 8 Apr 2022

@ ICTP

Condensed Matter and Statistical Physics

Ab-initio Many-Body Methods and Simulations with the Yambo Code | (smr 3694)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Claudio ATTACCALITE (Aix-Marseille University), Andrea MARINI (CNR Istituto di Struttura della Materia), Maurizia PALUMMO (Università di Roma Tor Vergata), Davide SANGALLI (CNR Istituto di Struttura della Materia), Daniele VARSANO (CNR, Istituto di Nanoscienze), Nicola SERIANI (ICTP), Local Organiser: Nicola Seriani (ICTP)

Cosponsor(s): MAX EU Centre of Excellencemax, Centre Européen de Calcul Atomique et Moléculairececam2

Support E-Mail: smr3694@ictp.it

**DEADLINE: 20/03/2022****Note: the deadline on 8 March 2022 is for applications needing financial support and/or visa and on 20 March 2022 for all other applications.**

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJAoduypqjIrGd1zt0seteAddjboiLQrC-8s After registering, you will receive a confirmation email containing information about joining the meeting. Online ICTP pio@ictp.it

Seminar

5 Apr 2022

@ Online

Mathematics

Seminar on "Introduction to topological recursion"

Room: Leonardo Building - Lecture Room D

Speaker(s): Gaëtan Borot (U. Berlin)

this will be an informal seminar talk. All are very welcome to join either online or in person (if provided with a green pass). Venue: Lecrure Room D (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 14:00

Europe/Rome The field of active matter studies materials composed of self-propelled entities, which can be either biological or synthetic. Examples of such materials stretch across length-scales, from nanorobots to humans, and provide a unique plethora of collective behaviors that are inaccessible in equilibrium materials, ranging from highly ordered bird flocks to phase separation in absence of any attraction among particles. The role of theoretical research in active matter is thus not only to explain natural phenomena but also to deliver robust models that allow to unveil which novel phenomenology we should expect. The talk will start with a brief overview of active matter and of my recent contributions to it. I will then focus on phase separation in active systems. This is one of the most fundamental collective phenomena arising at high density, and it takes place in systems as diverse as bacterial suspensions and biological tissues. I will show that much understanding can be drawn by generalising the classical field theoretical description of liquid-liquid phase separation (Model B, or phi^4 theory) to an active context. After discussing the thermodynamics of such model, I will show that activity induces phase separated phases that have qualitatively new features with respect to those encountered in passive systems. This surprising fact can be rationalised by generalising the concept of interfacial tension, crucial in passive phase separation, to an active context. Next, we will ask how to control these new forms of phase separation in terms of microscopically tunable parameters; although this question is still largely open, I will describe the recent progresses we made by studying minimal models of active particles. ICTP ICTP pio@ictp.it

Seminar

5 Apr 2022

@ ICTP

Quantitative Life Sciences

QLS Seminar: Phase separation in active matter systems

Address: Via Beirut, 2

QLS Seminar - An intrinsic dimension estimator for discrete-metric spaces: formalization and first applications

Address: via Beirut, 2

ICTP/UniTN/UniAQ Joint Seminar - Serial Clustering of Extratropical Cyclones: Where, When and Why It Occurs

Speaker(s): DACRE Helen, University of Reading, UK

Seminar Start Time: 15:30

Europe/Rome An ICTP-IAEA Virtual Meeting The two-week School is designed for early career professionals from developing countries, ideally with 1-3 years of experience and working at relevant institutions in their home country. The school provides an intense contemporary overview of nuclear security. Candidates should have a specific career interest in or knowledge of nuclear security, although academic and technical backgrounds may vary. Candidates with a scientific or technical background in a discipline such as nuclear physics, nuclear engineering, international relations, law enforcement, or related fields are especially encouraged to apply. Topics: Nuclear Security Overview International legal framework for nuclear security Identification of and measures to address, threats against nuclear security Nuclear Security Regime: Objective and Essential Elements Physical protection of nuclear material and nuclear facilities Physical protection system design and evaluation Nuclear security regime for radioactive material and associated facilities Transport security for nuclear and other radioactive material Threat and risk assessment, nuclear security detection architecture Radiation detection instruments and detection strategies and techniques Nuclear security culture, concept and definition, self-assessment and enhancement Information and computer security Introduction to Nuclear Material Accounting & Control and threats addressed by NMAC Threat and risk for material out of regulatory control Nuclear security systems and measures for major public events Incident and trafficking database global analysis Nuclear forensics and radiological crime scene management IAEA Programmes and Assistance for Human Resource Development in Nuclear Security The School will consist of a series of lectures and practical exercises, designed to incorporate the acquired knowledge into national planning and procedures to protect against threats to nuclear security. A virtual technical visit will be conducted to show the participants some detection equipment and their applications. Prerequisites: As a prerequisite to be eligible for the selection process, all applicants are asked to complete at least 8 of the 19 existing IAEA E-learning modules on nuclear security, based on their choices. Please find the link to all e-learning modules: https://elearning.iaea.org/m2/course/index.php?categoryid=48 Given the global health situation due to COVID 19 pandemic and travel restrictions, the International Atomic Energy Agency has re-designed the curriculum of the International School on Nuclear Security to be adapted to the virtual format. Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

19 Apr 2022 - 29 Apr 2022

@ Online -

Joint ICTP-IAEA 2022 International School on Nuclear Security | (smr 3684)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Oum Keltoum HAKAM (IAEA), Local Organiser: Claudio Tuniz (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea, Italian Ministry of Foreign Affairsmae3, Swedish Radiation Safety Authoritysrsa

Support E-Mail: smr3684@ictp.it

**DEADLINE: 04/04/2022**

Europe/Rome Colin Egan (ICTP) Abstract: Molecular dynamics (MD) simulations have become an invaluable tool, potentially allowing for detailed investigation of chemical phenomena that are experimentally inaccessible. Presently, the major computational bottleneck associated with MD simulations is handling the electronic degrees of freedom that determine the (Born-Oppenheimer) potential energy surface (PES) of the molecular system of interest. For insulating systems whose many-body expansions converge rapidly, such that a classical representation of the inductive electrostatics (polarization) is sufficient to describe the high order many-body interactions, it is possible to construct a model potential that accurately and efficiently describes the true PES of the system by applying the MB-nrg methodology. [1-4] Starting with a simple long-range potential, such as those used in typical polarizable force fields, we add close-range correction terms which account for interactions such as charge transfer and Pauli repulsion, as well as correcting deficiencies of the long-range potential, for example charge penetration effects. This approach allows one to apply highly accurate gas phase electronic structure data (for example from coupled cluster) to simulations of condensed phases. This talk provides an introduction MB-nrg methodology, including a general discussion on many-body interactions, details on the development of MB-nrg potentials, applications of the models in MD simulations, and the limitations of such a methodology. 1) F. Paesani, Acc. Chem. Res. 49,1844 (2016). 2) S. K. Reddy, S. C. Straight, P. Bajaj, C. H. Pham, M. Riera, D. R. Moberg, M. A. Morales, C. Knight, A. W. Götz, and F. Paesani, 145, J. Chem. Phys. 145, 194504 (2016). 3) B. B. Bizzarro, C. K. Egan, and F. Paesani, J. Chem. Theory Comput. 15, 2983 (2019). 4) C. K. Egan, B. B. Bizzarro, M. Riera, and F. Paesani, J. Chem. Theory Comput. 16, 3055 (2020). Link to advance Zoom registration: https://zoom.us/meeting/register/tJ0oduipqzwtGd3YmTbn0NeGH9Lwlw8iyT3y Virtual seminar ICTP pio@ictp.it

Seminar

20 Apr 2022

@ Virtual seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Many-Body Potential Energy Functions For Molecular Dynamics Simulations of Insulating Systems in Condensed Phases

Room: via Zoom

Speaker(s): Colin Egan (ICTP)

Seminar Start Time: 11:00

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJEpfuCvpjguHdKtzcES0xzHegVySNQN0hC3 After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: Last time we introduced nested Hilbert schemes and how one can express vertical Vafa-Witten as intersection numbers on nested Hilbert schemes. After reviewing this we will the sketch of proof of Laarakker's structure theorem for the vertical Vafa-Witten invariants, expressing them in terms of universal generating functions and Seiberg-Witten invariants. The proof uses the cobordism invariants of intersection numbers on Hilbert schemes of points. Then we will show how one can use this to explicitely determine the generating function for the Vertical-Vafa-Witten invariants, by first reducing to the case of toric surfaces and then localizing on Hilbert schemes of points on toric surfaces. In the remaining two (2) lectures we will (1) finish explaining the ingrediends of this computation, and present the formulas for the vertical-Vafa-Witten invariants, in terms of modular forms (2) state Mochizuki's formula for computing the horizontal Vafa-Witten invariants and use it to compute horizontal Vafa-Witten invariants. Previous Lecture held on 6th of April: Title: Vertical Vafa-Witten invariants and nested Hilbert schemes Abstract: We state the structure theorem of Laarakker for the vertical Vafa-Witten invariants of a projective surface S. We introduce nested Hilbert schemes (an incidence variety in products of Hilbert schemes of points and curves on the surface S), and their relation to vertical components of Vafa-Witten moduli spaces. We describe how the vertical Vafa-Witten invariants can be computed in terms of nested Hilbert schemes. We sketch the proof of Laarakker's structure theorem. Online ICTP pio@ictp.it

Seminar

22 Apr 2022

@ Online

Mathematics

ICTP/IGAP Algebraic Geometry Seminar "Computation of vertical Vafa-Witten invariants"

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Lothar Goettsche (ICTP)

Seminar Start Time: 14:00

Europe/Rome PRELIMINARY PROGRAMME as of 22.04.2022 (updated on 26.04.2022: please note changes on Day 3). The Workshop will run each day from 1:00 PM to 4:00 PM GMT (please check your local time https://greenwichmeantime.com/time-zone/africa/time-zones/). The agenda of the Workshop is also available at tinyml.seas.harvard.edu/SciTinyML-22/africa/, with further links. DAY 1 DAY 2 DAY 3 DAY 4 DAY 5 - - - - - - - - - - - - - - - - - TinyML is a subfield of Machine Learning focused on developing models that can be executed on small, real-time, low-power, and low-cost embedded devices. This allows for new scientific applications to be developed at an extremely low cost and at large scale. The TinyML process starts with collecting data from IoT devices, then training the collected dataset to extract knowledge patterns; these patterns are then packaged into a TinyML model that considers the target microprocessor’s limited resources such as memory and processing power. The resulting model is then deployed on embedded devices where it is used to evaluate new sensor data in real-time. Typically, power requirements are in the mW range and below which enables a variety of use-cases targeting battery operated devices. TinyML represents a collaborative eﬀort between the embedded power systems and Machine Learning communities, which traditionally have operated independently. TOPICS • ML general concepts • Introduction to TinyML • Getting started with the TinyML training kit • Examples of TinyML applications • Scientific Applications of ML Deadline for applications expired on 15 April 2022 Priority has been given to African participants that are part of the ICTP TinyML Academic Network. Interested candidates from Latin America and from Asia are invited to consider applying for dedicated editions of this online activity, namely: - Latin American Regional Workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices (see: smr.3721) - Asian Regional Workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices (see: smr.3715) Online - ICTP pio@ictp.it

Activity

25 Apr 2022 - 29 Apr 2022

@ Online -

African regional workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices | (smr 3708)

Room: Online

Secretary: Nicoletta Ivanissevich

Organizer(s): Vijay Janapa Reddi (John A. Paulson School of Engineering and Applied Sciences, Harvard University, USA), Gregg Barrett (AI Africa Consortium, South Africa), Local Organiser: Marco Zennaro (ICTP)

Cosponsor(s): Harvard John A. Paulson School of Engineering and Applied Scienceshseas1, AI Africa Consortiumai_cons

**DEADLINE: 15/04/2022**

Europe/Rome Alan Garbarz (Buenos Aires) Abstract: This talk is about the computation of the relative entropy associated to an interval between a thermal state and a coherent excitation of itself in the bosonic U(1)-current model, namely the (derivative of the) chiral boson. The main goal is to compute the corresponding relative entropy of Araki. For this purpose I will start by presenting some well-known facts on the algebra of Canonical Commutation Relations as well as more recent results of R. Longo and collaborators on the entropy of subspaces and of Bostelmann, Cadamuro and Del Vecchio on the relative entropy of non-pure states (by purification) such as thermal states. Then, by extending previous results of Borchers and Yngvason (which will be briefly recalled) it will be possible to make use of the full PSL(2,R) symmetries and hopefully become clear how to arrive at the sought relative entropy. Such entropy entails both a Bekenstein-like bound and a QNEC-like bound, which deserve further investigation. The talk is based on work in progress with Gabriel Palau. Hybrid seminar ICTP pio@ictp.it

Seminar

26 Apr 2022

@ Hybrid seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Relative entropy of an interval for the chiral boson at finite temperature

Room: room 128, SISSA (via Bonomea 265) + via Zoom

Speaker(s): Alan Garbarz (Buenos Aires)

Seminar Start Time: 11:00

Europe/Rome Lecture 5 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract In this talk I will provide highlights of two different - but overlapping - research topics. Both relate to the processes that drive surface temperature variability. In the first part I will focus on the role of ocean dynamics in driving sea-surface temperature variability. The key conclusion is that ocean dynamics act - in the net - to damp rather than drive low-frequency SST variability. The upshot is that the observed decadal variability - such as that associated with Atlantic decadal variability and the Pacific Decadal Oscillation - can not be traced to ocean processes. In the second part I will focus on changes in temperature persistence under climate change. Here the key finding is that temperature persistence is certain to change across the globe, but that the signs of the changes depend critically on various physical processes. I will argue that one key but overlooked process is the changes in radiative damping timescales under climate change. Zoom Event ICTP pio@ictp.it

Seminar

26 Apr 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Understanding the Processes that Drive Surface Temperature Variability

Speaker(s): THOMPSON David, Colorado State Univ., USA / Univ. East Anglia, UK

Seminar Start Time: 15:30

Europe/Rome Join Zoom Meeting https://zoom.us/j/475819702 Meeting ID: 475-819-702 If you haven't registered for previous QLS webinars, please contact qls@ictp.it to obtain the PASSWORD for this zoom meeting. In contrast to the classical concept of a Carnot engine that alternates contact between heat baths of different temperatures, naturally occurring processes usually harvest energy from anisotropy, being exposed simultaneously to chemical and thermal fluctuations of different intensities. In these cases, the enabling mechanism responsible for transduction of energy is the presence of a non-equilibrium steady state (NESS). A suitable stochastic model for such a phenomenon is the Brownian gyrator -- a two-degree of freedom stochastically driven system that exchanges energy and heat with the environment. In this context, we exploit the relationship between optimal mass transport and stochastic thermodynamics to present a geometric view of the energy harvesting mechanism, that entails a forced periodic trajectory of the system state on the thermodynamic manifold. Dissipation and work output are expressed accordingly as path integrals of a controlled process, and fundamental limitations on power and efficiency are expressed in geometric terms via a relationship to an isoperimetric problem. The analysis presented provides guiding principles for building autonomous engines that extract work from anistropic fluctuations. References: O. Movilla Miangolarra, A.Taghvaei, R. Fu, Y.Chen, T. T. Georgiou, Energy harvesting from anisotropic fluctuations, Phys. Rev. E (2021) O. Movilla Miangolarra, A.Taghvaei, Y.Chen, T. T. Georgiou, Geometry of finite-time thermodynamic cycles with anisotropic thermal fluctuations, arxiv:2203.12483 (2022) O. Movilla Miangolarra, A.Taghvaei, Y.Chen, T. T. Georgiou, Thermodynamic engine powered by anisotropic fluctuations, Arxiv:2203.07573 (2022) Zoom Meeting ICTP pio@ictp.it

Seminar

26 Apr 2022

@ Zoom Meeting

Quantitative Life Sciences

QLS webinar - Optimal Mass Transport meets Stochastic Thermodynamics: a geometric approach to thermodynamic cycles with anisotropic fluctuations

Speaker(s): Olga Movilla Miangolarra - University of California, Irvine, CA, USA

Support E-Mail: qls@ictp.it

Seminar Start Time: 16:00

Europe/Rome Join Zoom meeting: <a class="moz-txt-link-freetext" href="https://zoom.us/j/99014026267" style="box-sizing: border-box; background-color: transparent; color: rgb(14, 113, 235); text-decoration: none; font-family: Lato, Helvetica, Arial; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word;" target="_blank">https://zoom.us/j/99014026267 Meeting ID: 990 1402 6267 Password: 016743 ZOOM Meeting ICTP pio@ictp.it

Seminar

28 Apr 2022

@ ZOOM Meeting

Strings and Higher Dimensional Theories

HECAP Seminar: Harnessing S-Duality in N=4 Super Yang-Mills & Supergravity as SL(2,Z)-Averaged Strings

Speaker(s): Eric Perlmutter (IPHT, France)

Seminar Start Time: 16:30

Europe/Rome During this hands-on workshop, IT/HPC admins and climate change scientists will be trained on how to make effectively operational and remotely accessible HPC technology, and how to use the computational resources of operational HPC systems in West Africa (WA) to compute climate models and run simulations. This activity will also ease the creation of HPC community in WA. Topics: HPC IMPORTANCE, DESIGN, PURCHASE, AND INSTALLATION PROCESSES: e.g. HPC Facilities for scientific challenges in Climate modeling HPC TECHNOLOGY & ADMINISTRATION: Fundamentals of Computer Architecture and programming, Raking and building HPC clusters HPC NETWORK AND SYSTEM ADMINISTRATION / MANAGEMENT: e.g. HPC batch queue systems, storage, data formats (HDFS/NETCDF) HPC SYSTEM COMMON USAGE AND OPERATIONS: e.g. Hands-on work on compiling software and submit jobs on HPC clusters, Hands-on work on REGCM, WRF NETWORKING FOR FUTURE OPERATIONALISATION AND COLLABORATION OF EXISTING HPC CENTRES KEYNOTES ON ADDRESSING SCIENTIFIC CHALLENGES IN CLIMATE SCIENCES INVITED TALKS FROM CHPC, EAIFR, NiMET, Univ of Cocody Resource Persons: K. ADEWARA, Obafemi Awolowo University, Nigeria V. AJAYI, FUTA, Nigeria A. AKINTOMIDE, University of Georgia, USA S. BAMBA, AIMS, Rwanda B. DIALLO, WASCAL, Burkina Faso U. GARTERNICHT, DKRZ, Germany I. GIROTTO, ICTP, Italy G. GIULIANI, ICTP, Italy J. GOGWIM, University of Jos, Nigeria K. HACKMAN, WASCAL, Burkina Faso T. LUDWIG, DKRZ, Germany S. MEDA, WASCAL, Burkina Faso K. OGUNJOBI, WASCAL, Burkina Faso C. ONIME, ICTP, Italy E. PEDANOU, WASCAL, Burkina Faso S. SALACK, WASCAL, Burkina Faso M. SAVADOGO, WASCAL, Ghana W. SAVADOGO, University of Augsburg, Germany B. SINSIN, WASCAL-SAC, Benin M. SULE, ICTP, Italy H. THIEMANN, DKRZ, Germany Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. Ouagadougou - Burkina Faso ICTP pio@ictp.it

Activity

3 May 2022 - 13 May 2022

@ Ouagadougou - Burkina Faso

New Research Areas (High Performance Computing)

Joint WASCAL-ICTP Hands-on workshop on HPC technology for Climate Sciences | (smr 3689)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Belko DIALLO (WASCAL), Kwame HACKMAN (WASCAL), Kehinde OGUNJOBI (WASCAL), Edem PEDANOU (WASCAL), Ivan GIROTTO (ICTP), Graziano GIULIANI (ICTP), Mary-Jane SULE (ICTP), ICTP Scientific Contact: Ehimika Ohireime Clement Onime (ICTP)

Cosponsor(s): West African Science Service Centre on Climate Change and Adapted Land Usewascal2

Support E-Mail: smr3689@ictp.it

**DEADLINE: 22/04/2022**

Europe/Rome Join Zoom Meeting https://zoom.us/j/475819702 Meeting ID: 475-819-702 If you haven't registered for previous QLS webinars, please contact qls@ictp.it to obtain the PASSWORD for this zoom meeting The thermodynamic uncertainty relation (TUR) shows that the fluctuations of currents are bounded from below by the inverse entropy production. When one or more transitions are completely irreversible the entropy production diverges, and the TUR becomes non-informative. We show that additional bounds, which mix entropic and dynamic contributions, hold for such processes. Crucially, these new bounds are tighter in the presence of irreversible transitions. A steady-state process with resetting, enzymes and a transient first-passage problem are used as examples. We also discuss the connections between the bounds and the Aldous-Shepp bound that is often used in statistical kinetics. Zoom Meeting ICTP pio@ictp.it

Seminar

3 May 2022

@ Zoom Meeting

Quantitative Life Sciences

QLS webinar - Uncertainty relation for enzymes, resetting systems, and first passage time processes with irreversible transitions

Speaker(s): Arnab Pal - The Institute of Mathematical Sciences, Chennai, India

Support E-Mail: qls@ictp.it

Seminar Start Time: 14:00

Europe/Rome Join Zoom Meeting: https://zoom.us/j/95195495706 Meeting ID: 951 9549 5706 Password: 012022 Kindly note that the maximum number of participants in presence is 30 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

3 May 2022

@ Zoom Meeting + in presence

Phenomenology of Particle Physics

HECAP Seminar: Dark Matter and Muon g-2 Anomaly via Scale Symmetry Breaking

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Parsa Ghorbani (Ferdowsi University of Mashad)

Abstract. I begin by a brief review on the scale invariant extension of the Standard Model in particle physics. Then I introduce a particular property in scale invariant models which is absent in other Higgs-portal scenarios. I show that to accommodate the dark matter problem and the muon g-2 anomaly one needs a scale invariant model with at least two singlet scalars plus one vector-like lepton coupled to the muon. I will point out how that particular property helps the model evade some strong constraints at colliders.

Seminar Start Time: 14:30

Europe/Rome Lecture 6 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract The climate system is multiscale, multidimensional and nonlinear. Here we propose a robust framework for visualizing and analyzing its dynamics, accounting for both dependencies and nonlinearities. At each time t, the system is uniquely described by a state space vector parameterized by N variables and their spatial variability. The dynamics is confined on a manifold with dimension lower than the full state space and a strategy for manifold learning is presented via linear and nonlinear algorithms. We focus on the Tropical Pacific Ocean using a reanalysis as observational proxy (ERA5) and two state-of-the-art models from the CMIP6 catalog, MPI and EC-Earth3. The analysis spans four variables over two 40 years periods at daily frequency, during historical times and in the SSP585 scenario. The manifold learning step allows for comparing nonlinear contributions as well as the relative role of each variable in the system's dynamics. Instantaneous properties of the high dimensional attractor are then quantified through the local dimension and persistence metrics, recently introduced to the climate community. These metrics quantify geometrical properties of the manifold and the stability of local motions. Both models underestimate the average dimension and overestimate the potential predictability of Tropical Pacific climate compared to ERA5, which is indicative of common and persistent differences between modelled and observed dynamics. These model's biases are nearly identical during the historical period while diverging in the global warming scenario analyzed. Zoom Event ICTP pio@ictp.it

Seminar

3 May 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Exploring the Manifold of the Tropical Pacific in Observations and Models

Speaker(s): BRACCO Annalisa, Georgia Institute of Technology, USA

Seminar Start Time: 15:30

Europe/Rome An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. Non-Markovian processes arise in many areas of statistical physics and often pose major theoretical challenges. Bringing together different communities, this conference fosters the exchange of recent advances in the description and understanding of non-Markovian dynamics. The focal point of this conference is the theoretical study of non-Markovian dynamics appearing in a broad range of physical problems across stochastic dynamics, active matter, and quantum systems. Through presentations, posters, scientific discussions, and informal interactions, the conference promotes dialogue among the communities to explore analogies between different physical theories from the perspective of non-Markovian dynamics, share physical insights, and methodological advances. A special focus are non-Markovian processes far from thermal equilibrium, which is a common frontier in various fields where additional challenges arise. The conference brings together international and interdisciplinary researchers to enhance cross-fertilization between the communities and lay the foundations for research collaborations. The conference further promotes the participation of students from developing countries. Topics: Non-Markovian dynamics in Stochastic processes Soft condensed and Active Matter Quantum systems Speakers: U. BASU, S. N. Bose National Centre for Basic Sciences, India G. BISKER, Tel Aviv University, Israel L. CUGLIANDOLO, Sorbonne University (LPTHE), France T. FRANOSCH, University of Innsbruck, Austria A. GODEC, Max Planck Institute for Biophysical Chemistry Göttingen, Germany R. HARRIS, Queen Mary University London, UK S. F. HUELGA, Ulm University, Germany S. MAJUMDAR, University Paris-Saclay (LPTMS), France N. MEGIER, International Centre for Theory of Quantum Technologies, Poland J. PIILO, University of Turku, Finland T. SANDEV, Macedonian Academy of Sciences and Arts, North Macedonia Participants are encouraged to submit research abstracts. A number of short oral presentation slots will be available for some of them upon selection, and a number of posters abstracts will be selected for poster session. During the application please make sure to use our templates to format your abstract in PDFs. Templates are available below for download. Accepted participants will be able to attend in remote or — strictly following Italian sanitary rules as they will be applicable at the time of the conference, and depending on the very limited number of available places — in person. As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

4 May 2022 - 6 May 2022

@ ICTP

Condensed Matter and Statistical Physics

Non-Markovian Dynamics Far From Equilibrium | (smr 3697)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Andrea GAMBASSI (SISSA), Benjamin WALTER (SISSA), Sarah LOOS (ICTP), Local Organiser: Edgar Roldan (ICTP)

Cosponsor(s): International School for Advanced Studiessissa3

Support E-Mail: smr3697@ictp.it

**Note: the deadline on the 8th of April 2022 is for all applications for contributing a poster/talk, and all in-person applications. The deadline on the 22nd of April 2022 is for only online applications without poster/talk.****DEADLINE: 22/04/2022**

Europe/Rome Abstract: An irrational number is called a Brjuno number if the sum of the series of log(q_{n+1})/q_n converges, where q_n is the denominator of the n-th principal convergent of the regular continued fraction. The importance of Brjuno numbers comes from the study of analytic small divisors problems in dimension one. In 1988, J.-C. Yoccoz introduced the Brjuno function which characterizes the Brjuno numbers to estimate the size of Siegel disks. In this talk, at first, we consider the k-Brjuno functions and the Wilton function which are related to the classical Brjuno function. We study their BMO (Bounded Mean Oscillation) regularity properties. Then we complexify the functional equations which they fulfill and we construct analytic extensions of the k-Brjuno and of the Wilton function to the upper half-plane. This is joint work with Stefano Marmi, Izabela Petrykiewicz, and Tanja I. Schindler. Secondly, we introduce Brjuno-type functions associated with by-excess (backward), odd, even and odd-odd continued fractions. We see that the Brjuno numbers are characterized by the Brjuno-type functions. Then we deal with their Holder continuity properties. This is joint work with Stefano Marmi. ICTP ICTP pio@ictp.it

Seminar

4 May 2022

@ ICTP

Mathematics

Regularity properties of Brjuno and Wilton functions

Room: Leonardo Building - Lecture Room D

Speaker(s): Seul Bee (Scuola Normale Superiore di Pisa)

Seminar Start Time: 14:00

Europe/Rome PRESENCE: ICTP Leonardo Da Vinci Building, Luigi Stasi Lecture Room ONLINE: Register in advance for this meeting: https://zoom.us/meeting/register/tJEtd-GvqjorE9BtDAqiw4qFvW-xmtQQ0wOO After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: Last time we used nested Hilbert schemes to express vertical Vafa-Witten invariants of a surface S in terms of (unknown) universal power series, which are generating functions for intersection numbers on Hilbert schemes of points on S. In this lecture we will reduce to the case that the surface S is toric, and then explain how to explicitly compute the generating functions via localization. We will present the formulas obtained. Next time we will sketch how to use Mochizuki's formula to do the same for the horizontal Vafa-Witten invariants. Online ICTP pio@ictp.it

Seminar

4 May 2022

@ Online

Mathematics

ICTP/IGAP seminar on Algebraic Geometry "Computation of the vertical Vafa-Witten invariants II: localization on Hilbert schemes of points"

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

This will be a hybrid seminar. All are very welcome to join either online or in person. Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome An ICTP Online Meeting The workshop will discuss progress in the investigation of materials for batteries, and of the related chemical and physical processes, including lithium- and sodium-based, high-valence-ion, and metal-air batteries, electrodes and electrolytes. Description continued: The world is likely to see an increase of the importance of energy storage in the near future. One reason is the increasing presence of renewable energy sources, most of which are intermittent in nature. Another reason is the drive towards alternatives to fossil fuels for the transportation sector. Across these fields, requirements on the storage system may be very different, for example in terms of energy and power density. For all these solutions, a key issue is the development of functional materials able to perform the required tasks efficiently, produced from safe, widely available and easy-to process raw materials. Aim of the workshop is to discuss recent progress in the investigation of materials for batteries, and of the related chemical and physical processes. Topics: Alkali-ion batteries Lithium-sulphur batteries Batteries with high-valence ions Metal-air batteries Experimental techniques Computational modeling of materials Speakers: G. CEDER, UC Berkeley, USA R. DOMINKO, National Institute of Chemistry, Slovenia A. FRANCO, University of Picardie, France Y. GOGOTSI, Drexel University, USA F. LA MANTIA, Bremen University, Germany Y.-H. NA, IBM, USA S. PASSERINI, KIT, Germany S. SARICIFTCI, JKU, Austria L. YASHINA, Moscow State University, Russia A. WALSH, Imperial College London, UK Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

5 May 2022 - 26 May 2022

@ Online -

Workshop on Electrochemical Energy Storage: Theory, Experiments, and Applications | (smr 3698)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Ralph GEBAUER (ICTP), Nicola SERIANI (ICTP), Local Organiser: Nicola Seriani (ICTP)

Support E-Mail: smr3698@ictp.it

**DEADLINE: 20/04/2022**

Europe/Rome An ICTP Hybrid Meeting. The School is live-streamed on the ICTP HECAP YouTube Channel. ICTP's annual Spring School on Superstring Theory and Related Topics provides pedagogical treatment of those subjects through lectures by some of the world's top string theorists. The activity is intended for theoretical physicists or mathematicians with knowledge of quantum field theory, general relativity, and string theory. It is organized in collaboration with the Italian Institute for Nuclear Physics (INFN). This years school is a satellite activity of Strings 2022 in Vienna. Topics: Non-invertible symmetries Strings on AdS3 Topological aspects of string theory Celestial amplitudes Lecturers: K. COSTELLO, Perimeter Institute, Canada L. DONNAY, Vienna University of Technology, Austria M. GABERDIEL, ETH Zurich, Switzerland Y. WANG, New York University, USA Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

9 May 2022 - 13 May 2022

@ ICTP

High Energy Cosmology and Astroparticle Physics

Spring School on Superstring Theory and Related Topics | (smr 3699)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Bobby ACHARYA (ICTP, Italy), Francesco BENINI (SISSA, Italy), Pavel PUTROV (ICTP, Italy), Local Organiser: Bobby Acharya (ICTP)

Cosponsor(s): Italian Institute for Nuclear Physicsinfn3, Strings 2022str22, Journal of High Energy Physicsjhep1

Support E-Mail: smr3699@ictp.it

**Note: the deadline on 20 March 2022 is for all applications including those needing financial support and/or visa and on 19 April 2022 - all other applications.****DEADLINE: 19/04/2022**

Europe/Rome An ICTP Virtual Meeting The event aims at providing the next generation of young researchers with a didactic platform on the latest advancements in methods and applications of AI for material discovery. Moreover, the even will bring forth a discussion on the implications of the latest advancements in data-driven methods on the different sub-areas of Materials discovery. Topics of discussion include, but are not limited to: Energy materials discovery High-performance materials discovery Drug discovery Industrial applications of machine learning and molecular modelling Machine learning potentials Generative models Data-driven characterization High-throughput screening Physics-based linear and kernel methods Advanced neural network methods Speakers A. ANELLI, Roche, Switzerland L. BANKO, Ruhr-Universität Bochum, Germany A. BOCHKAREV, Ruhr-Universität Bochum, Germany S. DZEROSKY, Jozef Stefan Institute, Slovenia F. FABER, University of Cambridge, UK A. GLIELMO, Banca d'Italia, Italy F. GRISONI, Eindhoven University of Technology, Netherlands B. KOZINSKY, Harvard University, USA A. LAIO, SISSA, Italy N. LOPEZ, Institute of Chemical Research of Catalonia, Spain J. MARGRAF, Fritz-Haber-Institut der MPG, Germany F. PELLEGRINI, SISSA, Italy M. RUPP, University of Konstanz, Germany S. SACCANI, Aindo, Italy K. SCHUTT, Technische Universität Berlin, Germany M. TODOROVIC, University of Turku, Finland Z. ULISSI, Carnegie Mellon University, USA R. VAN DEN BERG, Microsoft Research, USA J. WESTERMAYR, University of Warwick, UK R. WINTER, Bayer, USA Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

9 May 2022 - 13 May 2022

@ Online -

Condensed Matter and Statistical Physics

Young Researchers' Workshop on Machine Learning for Materials | (smr 3701)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Stefano DE GIRONCOLI (International School for Advanced Studies), Patrick RINKE (Aalto University), Kevin ROSSI (Ecole Polytechnique Fédérale de Lausanne), Milica TODOROVIĆ (Turku University), Claudio ZENI (International School for Advanced Studies), Local Organiser: Sandro Scandolo (ICTP)

Cosponsor(s): Centre Européen de Calcul Atomique et Moléculairececam, Psi-kpsi_k, International School for Advanced Studiessissa3, Aalto Universityaalto, MAX Centre of Excellencemax3, John Wiley & Sons, Inc.wil1

Support E-Mail: smr3701@ictp.it

**DEADLINE: 01/05/2022**

Europe/Rome The Regional Workshop on GNSS and Space Weather will be held online and in presence in Morocco, Rabat. * * * PRELIMINARY PROGRAMME (updated: 09.05.2022) Below programme is indicated according to Moroccan local time (UTC+1). For those attending the workshop online: if you check the programme details through the buttom on the left of this page, time appears adjusted to your local time zone (i.e. adjusted to your computer system time). Nevertheless, we suggest that you double-check the corrisponding time zone for your place. Monday, 9 May 2022 - DAY 1 08:30 REGISTRATION OF PARTICIPANTS 1h0' Registration of all participants in presence 09:30 Opening Ceremony 50' 10:20 Introduction to CRASTE-LF 20' Speaker: Anas Emran (CRASTE-LF, Rabat) 10:40 The ICG and its program on GNSS Applications 20' Speaker: Sharafat Gadimova (UNOOSA, Vienna) 11:00 Coffee break 30' 11:30 Les connexions soleil-terre et la météorologie de l'espace: Une approche historique 1h0' Speaker: Christine Amory-Mazaudie (Sorbonne Université, Paris) 12:30 Lunch break 1h0' 13:30 Introduction to GNSS 1h30' Speaker: John Raquet (Integrated Solutions for Systems), Virtual 15:00 Coffee break 30' 15:30 Sun-Earth Connection 1h0' Speaker: Christine Amory-Mazaudie (Sorbonne Université, Paris) Tuesday, 10 May 2022 - DAY 2 09:00 Introduction to the Ionosphere 1h0' Speaker: Sandro Maria Radicella (Boston College), Virtual 10:00 Equatorial Ionosphere: Electrodynamics, Features 1h0' Speaker: Akeem Babatunde Rabiu (Centre for Atmospheric Research, Kogi State University Nigeria), Virtual 11:00 Coffee break 30' 11:30 Ionospheric Measurements with GNSS Signals 1h0' Speaker: Kouadio Olivier Obrou (Université FHB de Cocody, Abidjan) 12:30 Lunch break 1h0' 13:30 Small-scale Ionospheric Irregularities 1h0' Speaker: Keith Michael Groves (Boston College), Virtual 14:30 Open discussion 30' 15:00 Coffee break 30' 15:30 Ionospheric Effects on GNSS Augmentation Systems 1h0' Speaker: Todd Walter (Stanford University), Virtual Wednesday, 11 May 2022 - DAY 3 09:00 Introduction to Ionospheric Modeling 1h0' Speaker: Bruno Nava (ICTP) 10:00 The NeQuick Model Code and Uses 30' Speakers: Yenca Migoya-Orue' (ICTP), Virtual 10:30 TBD 30' 11:00 Coffee break 30 11:30 Space Weather in Morocco 1h0' Speaker: Aziza Bounhir (Faculty of Sciences, Mohammed V University) 12:30 Lunch break 1h0' 13:30 Risk Awareness for Equatorial Plasma Bubbles and Scintillations 1h0' Speaker: Rezy Pradipta (Boston College), Virtual 14:30 Space Weather Effects on Society 30' Speaker: Patricia H. Doherty (Boston College), Virtual Thursday, 12 May 2022 - DAY 4 09:00 The ESA Monitor Project: Ionospheric Scintillation Variability over Africa 1h0' Speaker: Yannick Beniguel (IEEA, France) 10:00 The NORISK Project: New Observatory for Realtime Ionospheric Sounding over Kenya 30' Speaker: Claudio Cesaroni (Istituto Nazionale di Geofisica e Vulcanologia, Rome) 10:30 SANSA Infrastructure and Opportunities 30' Speaker: Petrus Cilliers (South African National Space Agency Space Science Directorate), Virtual 11:00 Coffee break 30' 11:30 TEC Evaluation from GNSS Measurements 1h0' Speaker: Claudio Cesaroni (Istituto Nazionale di Geofisica e Vulcanologia, Rome) 12:30 Lunch break 1h0' 13:30 Ionospheric Sensing with Radio Occultations 30' Speakers: Keith Groves (Boston College), Virtual 14:00 The Madrigal Database 1h0' Speakers: Anthea Jane Coster (MIT Atmospheric Sciences Group), Virtual 15:00 Coffee break 30' 15:30 Ionospheric Scintillation Monitoring and Mitigation Using GNSS 1h0' Speaker: Yu Tong (Jade) Morton (University of Colorado), Virtual Friday, 13 May 2022 - DAY 5 09:00 Mobile Phones for Ionospheric Measurements 1h0' Speaker: Frank van Diggelen (Google) 10:00 Mobile Phones Practical Laboratory 1h0' Speaker: Frank van Diggelen (Google) 11:00 Coffee break 30' 11:30 Instruction: Creating an App on a Mobile Phone 1h0' Speaker: Mohammed Khider (Google) 12:30 Lunch break 1h0' 13:30 Practical Laboratory - Creating your App on a Mobile Phone 1h30' Speaker: Mohammed Khider (Google) 15:00 Workshop Closing 1h0' * * * Speakers C. AMORY, Sorbonne University, France Y. BENIGUEL, IEEA, France A. BOUNHIR, University Mohammed V, Rabat C. CESARONI, INGV, Italy P. CILLIERS, SANSA, South Africa A. COSTER, MIT, USA P. DOHERTY, Boston College, USA S. GADIMOVA, UNOOSA-ICG, Austria K. GROVES, Boston College, USA M. KHIDER, Google, USA B. NAVA, ICTP, Italy Y. MIGOYA ORUE", ICTP, Italy Y. J. MORTON, University of Colorado, USA O. OBROU, University FHB, Côte d’Ivoire R. PRADIPTA, Boston College, USA B. RABIU, CAR NASRDA, Nigeria S.M. RADICELLA, Boston College, USA J. RAQUET, Integrated Solutions for Systems, USA F. VAN DIGGELEN, Google, USA T. WALTER, Stanford University, USA Topics • Introduction to GNSS • GNSS Applications • Sun-Earth coupling and Space Weather • Ionospheric Irregularities • Introduction to Ionospheric Monitoring • Introduction to Ionospheric Modeling Space Weather refers to conditions on the Sun, in the solar wind, magnetosphere, ionosphere and thermosphere, which can influence the performance and reliability of a variety of space borne and ground-based technological systems. Space Weather is recognised as the cause of significant errors experienced by Global Satellite Navigation Systems (GNSS), including Satellite Based Augmentation Systems (SBAS). GNSS or SBAS signals, propagating from a satellite to a receiver on the ground, pass through the ionosphere where they are subject to Space Weather effects. Under these conditions pseudorange errors and signals scintillations at user receiver level may be present. The purpose of this workshop is to give an introduction to the physics of ionosphere and to provide a basic knowledge on GNSS systems and their scientific and technological applications. Particular attention will be devoted to Space Weather research with GNSS data in the African Countries. A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. Female scientists are encouraged to apply. Deadline for application is over. Rabat - Morocco ICTP pio@ictp.it

Activity

9 May 2022 - 13 May 2022

@ Rabat - Morocco

Regional Workshop on GNSS and Space Weather | (smr 3693)

Secretary: Nicoletta Ivanissevich

Organizer(s): Patricia Doherty (Boston College), Anas Emran (CRASTE-LF), Sharafat Gadimova (UNOOSA), ICTP Scientific Contact: Bruno Nava (ICTP STI Unit)

Cosponsor(s): CRASTE-LFcraste, Boston Collegebcl, Mohammed V University-Agdalumvar, International Committee on Global Navigation Satellite Systemsicg2

**DEADLINE: expired on 13/03/2022** **DEADLINE: 13/03/2022**

Europe/Rome Arun Anand (University of Baroda) Brightfield microscopy is an ideal tool for observing micro-objects, including living cells, under various conditions. Information obtained from the microscope can be used to characterize, identify, and compare cells. It is still a gold standard in identification of many diseses and health conditions including malaria, sickle cell disease, thalassemia etc. However, since many living cells have low absorption cross-section for visible light bright field microscopes provide only low contrast 2D images. Also, no information about cell morphology is accessible. Phase contrast microscopy techniques provide a way to overcome the problem of low contrast. Also, if direct access to the phase of the object wavefront is available, cell thickness distribution (cell morphology) can be reconstructed. This leads to quantitative phase microscopy (QPM). The phase of the object wavefront (wavefront interacting with the object or sample under test) can be retrieved by superposing it with a reference wavefront (wavefront unmodulated by object information). Object phase information is encoded in the interference fringes resulting from the superposition of the two wavefronts (object and reference). Digital holography is one of the techniques for quantitative phase imaging, where holograms (interference patterns) are recorded on semiconductor arrays and reconstructed by the numerical implementation of scalar diffraction integrals. This yields the complex amplitude distribution of the object wavefront. The phase of the object wavefront is extracted from the complex amplitude and then converted into thickness distribution. QPM using digital holography is a single-shot technique that provides cell thickness information of the entire cell from a single hologram, yielding many sample features based on sample thickness and its time variation. The presentation will provide an overview of our work on designing and developing compact, portable, low-cost digital holographic microscopes for label-free quantitative phase imaging of technical and biological samples. References: [1] U. Schnars, W. Juptner, Digital Holography: Digital Hologram Recording, Numerical Reconstruction, and Related Techniques, Springer (2005) [2] P. Ferraro, A. Wax, Z. Zalevsky, Coherent Light Microscopy: Imaging and Quantitative Phase Analysis, Springer (2011) [3] A. Anand, V. Chhaniwal B. Javidi, “Tutorial: Common path self-referencing digital holographic microscopy”, APL Photonics 3, 071101 (2018) * * * Register in advance for this meeting: https://zoom.us/meeting/register/tJwtduigrz0qE9YOnsGaEgmBffuVwyWH--P_ After registering, you will receive a confirmation email containing information about joining the seminar. Virtual ICTP pio@ictp.it

Seminar

9 May 2022

@ Virtual

STI Seminar: Digital holographic microscopy for single-shot quantitative phase contrast imaging of cells and their characterization

Speaker(s): Arun Anand

Seminar Start Time: 15:00

Europe/Rome Zhao Zhang (SISSA) Abstract: Ever since its experimental observation, quantum many-body scarring as a weaker form of ergodicity breaking and ETH violation than the previously known integrability and many-body localization, has generated intensive theoretical efforts in searching exact excited states of models known to be non-integrable. Most of the examples found so far, fall in to the unified framework of spectrum generating algebra, sharing common features such as equal-distant energy spacing and area-law of entanglement entropy. In this talk, I present two distinct models, in one and two dimensions, with novel paradigms of allowing exact eigenstates or integrable subspectra. Their energy gaps and entanglement entropies of are also studies rigorously to show that neither fall into the categorial of conventional quantum many-body scars (QMBSs). These two models were constructed with two opposite approaches: the first model starts with a frustration-free bulk Hamiltonian and introduce boundary terms to split the ground state degeneracy. The second adds perturbation to an integrable Hamiltonian that violates Yang-Baxter equation in general, but leaves it satisfied only in certain subspaces of the Hilbert space, where the Bethe Ansatz eigenstates survive. These complementing strategies should help provide insight into the zoo of known QMBSs and formulating a general theory to guide their search in the future. Hybrid Seminar ICTP pio@ictp.it

Seminar

10 May 2022

@ Hybrid Seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Two toy models of novel quantum many-body scarring mechanisms

Room: room 128, SISSA (via Bonomea 265) + via Zoom

Speaker(s): Zhao Zhang (SISSA)

Seminar Start Time: 11:00

Europe/Rome Join Zoom Meeting: https://zoom.us/j/97219880490 Meeting ID: 972 1988 0490 Password: 012022 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 30 pp. Zoom meeting + in presence ICTP pio@ictp.it

Seminar

10 May 2022

@ Zoom meeting + in presence

Cosmology

HECAP Seminar: On the adiabatic subtraction of cosmological perturbations

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Lorenzo Sorbo (University of Massachusettes)

Abstract. Adiabatic subtraction is a popular method of renormalization of observables in quantum field theories on a curved spacetime. When applied to the computation of the power spectra of light fields during inflation, the standard prescriptions of adiabatic subtraction lead to results that are significantly different from the standard predictions of inflation not only in the ultraviolet but also at moderately superhorizon wavelengths. I will review those results and contrast them with the power spectra obtained using an alternative prescription for adiabatic subtraction applied to quantum field theoretical system by Dabrowski and Dunne. This latter prescription eliminates the intermediate-wavelength effects of renormalization that are found when using the standard one. Both prescriptions lead to a vanishing power spectrum for a massless, minimally coupled scalar on exact de Sitter space.

Seminar Start Time: 14:30

Europe/Rome Lecture 7 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract Humans are vastly modifying the earth system, with identifiable impacts across the land surface, ocean and atmosphere. Here, we will explore three example applications of how explainable AI (XAI) techniques can help us visualize and quantify these changes over time. First, we will demonstrate how we can utilize XAI methods to quantify the footprint of human activity across the global land surface in near-real time. Second, we will demonstrate the utility of XAI for extracting forced climate patterns through time amidst a sea of climate noise and model disagreement. Third, we will show how XAI can help us better understand and predict temporal variations in decadal warming trends. All three parts of this talk serve as examples of how viewing our climate through an AI lens has the power to uncover new insights into anthropogenic change - allowing scientists to ask "why?" but now with the power of machine learning. Zoom Event ICTP pio@ictp.it

Seminar

10 May 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Viewing Anthropogenic Change Through an AI Lens

Speaker(s): BARNES Elizabeth, Colorado State University, USA

Seminar Start Time: 15:30

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJYvc-ihrzgvEtAoOzwRBxd2DGFnUhpNA45O After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: We will discuss a relation between the classes of Schwartz functions present in Cowling-Price's and Hardy's uncertainty principle: they are almost-equivalent. We also discuss on an endpoint conjecture version of our main result, exhibiting particular classes where it holds, and present applications of our main theorem, making connections with the recent machinery of Escauriaza-Kenig-Ponce-Vega and with bounds on pointwise Gaussian decay of solutions to harmonic oscillators, settling a conjecture of Vemuri in all but a discrete set of times. Joint work with João Pedro Ramos (ETH) and Aleksei Kulikov (NTNU). Online and in Presence ICTP pio@ictp.it

Seminar

10 May 2022

@ Online and in Presence

Mathematics

On the connection between the Hardy and L^2-Cowling--Price Gaussian space-frequency spaces in the subcritical case

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lucas Oliveira (Universidade Federal do Rio Grande do Sul)

This will be a hybrid seminar. All are very welcome to join either online or in person. Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome Duc Nguyen-Manh United Kingdom Atomic Energy Authority Abstract: “We say that we will put the sun into a box. The idea is pretty. The problem is, we don’t know how to make the box” (Pierre Gilles de Gennes). Nuclear fusion - the joining together of atomic nuclei of light elements such as the reaction between two hydrogen isotopes, deuterium (D) and Tritium (T) to form heavier helium atoms - is the process by which vast amounts of energy is produced in stars like our sun. If it can be harnessed on Earth it has the potential deliver a nearly unlimited and safe source of energy which does not produce the environmentally damaging CO2 emissions that are released by burning traditional fossil fuels. To achieve nuclear fusion in a machine on Earth, extraordinarily high temperatures of around 150 million degrees Celsius are needed, about 10 times higher than the temperature of the sun's core. Most recently, the UK-based Joint European Torus (JET) laboratory in Culham, has made a breakthrough in the quest to develop practical energy fusion in producing 59 MJ of energy (more than double what was achieved in the 1997 test) but over only 5 seconds. The major technological challenges of fusion energy are intimately linked with the availability of suitable materials capable of reliably withstanding the extremely severe operational conditions of fusion reactors. The energetic spectrum associated with the D-T fusion neutrons (14.1MeV compared to<2MeV on average for fission neutrons) releases significant amounts of hydrogen and helium as transmutation products that might lead to a degradation of materials after a few years of operation. Structural materials development, together with research on functional materials capable of sustaining unprecedented power densities during plasma operation in a fusion reactor, have been the subject of decades of worldwide research efforts underpinning the present fusion materials research programme. Overcoming the lack of a fusion-relevant neutron source for materials testing is an essential pending step in fusion roadmaps. At the same time, fundamental understanding of the transient materials changes due to fusion neutron loading pose scientific and predictive computational challenges that require the development of an integrated framework to support the design effort for future fusion power plants. In this talk, we highlight the recent advances in developing an integrated multi-scale modelling based on first-principles calculations to investigate phase stability under and microstructure evolution of plasma-facing material components such as reduced-activation ferritic/martensitic (RAFM) steels for the first wall and W&W alloys for the divertor [1-5]. More attention will be focusing on our recent development of constrained thermodynamic approach in predicting free energies of the various phases in the presence of radiation-induced defects (saturated vacancies, interstitials, and precipitates) with the final microstructure of combinations of phases giving the lowest free energy. The model has been successfully employed not only to understand the origin of microstructures decorated by transmutation products in neutron irradiated W [6-7] but also to predict new W-based based high-entropy alloys with outstanding radiation resistance [8]. [1] D. Nguyen-Manh et al., Phys. Rev. B, 73, 010201 (2006); PRB, 80, 104440 (2009) [2] D. Nguyen-Manh et al., Progress in Materials Science., 52, 255 (2007). [3] D. Nguyen-Manh et al., J. Mater. Science, 47, 21 (2012) [4] D. Nguyen-Manh et al., Annal of Nuclear Energy, 77, 246 (2015); NIMB, 352, 86 (2015) [5] K. Arakawa et al., Nature Materials, 19, 508 (2020) [6] D. Nguyen-Manh et al, Phys. Rev. Mater., 5, 065401 (2021) [7] M. J. Lloyd et al., Materialia, 22, 101370 (2022) [8] O. Et-Atwani et al., Science Advances, 5, eaav2002 (2019). The link for advanced Zoom registration: https://zoom.us/meeting/register/tJwkceyspzIoHteHurD9ZNF_8C5Yz0CPVHre Via Zoom ICTP pio@ictp.it

Seminar

11 May 2022

@ Via Zoom

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Challenges and perspectives in predicting phase stability and radiation damages in plasma-facing materials for fusion-power plant application

Speaker(s): Duc Nguyen-Manh United Kingdom Atomic Energy Authority

Seminar Start Time: 11:00

Europe/Rome Zoom registration: https://bit.ly/QLS11May Active matter exhibits a wealth of emergent non-equilibrium behaviors. A paradigmatic example is the interior of biological cells. The intimate coupling of active forces, thermal noise, hydrodynamic interactions, and polymeric connectivity implies the emergence of novel structural and dynamical features. Different propulsion mechanisms capture the physics of active polymeric systems, such as chains of active Brownian particles, and polar tangentially propelled laments. This leads to interesting single-particle behavior, such as a softening of active Brownian laments at intermediate levels of activity. At high polymer densities, collective dynamics is characterized by active turbulence. Vesicles with internal active components are highly simplifed models of cells. Here, the active components lead to enhanced fluctuations and an intimate coupling of propulsion forces, membrane deformability, cell shape, and cell sensing and reactivity. In all these systems, computational models of active matter play an essential role to elucidate their non-equilibrium behavior. Zoom ICTP pio@ictp.it

Colloquium

11 May 2022

@ Zoom

Quantitative Life Sciences

QLS Monthly Colloquium Series - Computational Physics of Active Filaments, Membranes, and Cells

Speaker(s): Gerhard Gompper, Forschungszentrum Juelich

Support E-Mail: qls@ictp.it

Colloquium Start Time: 11:00

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJYocuyqrjwrGdzQVfkOQzaUcUKJBfDbGnfw After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: Modeled on the book project https://arxiv.org/abs/math/0409584 of Gabber and Ramero, we propose a category of topological sheaves on a not-necessarily noetherian formal scheme which is Quillen-exact, closed symmetric monoidal, and admits cokernels and images. Unless the scheme is affine, the category does not admit kernels. We show that the corresponding (topological) cohomology may be calculated by Cech methods. Online and in Presence ICTP pio@ictp.it

Seminar

11 May 2022

@ Online and in Presence

Mathematics

A closed exact category of quasi-coherent sheaves on formal schemes

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Francesco Baldassarri (University of Padova)

This will be a hybrid seminar. All are very welcome to join either online or in person. Venue: Luigi Stasi seminar room, for those wishing to attend in person.

Seminar Start Time: 14:00

Europe/Rome Mark Srednicki (UC Santa Barbara) Abstract: I will review the motivations for the eigenstate thermalization hypothesis and the range of systems for which it is expected to hold, and discuss the implications for out-of-time-order correlators. Join Zoom Meeting: https://sissa-it.zoom.us/j/86924123954?pwd=dDdiUkNHdi9vRmpPZFJKUDdWMkxwQT09 via Zoom ICTP pio@ictp.it

Seminar

11 May 2022

@ via Zoom

Condensed Matter and Statistical Physics

Special Statistical Physics Webinar: Eigenstate Thermalization and Out-of-Time-Order Correlators

Speaker(s): Mark Srednicki (UC Santa Barbara)

Seminar Start Time: 16:00

Europe/Rome Franco Bonafé (Max Planck Institute for the Structure and Dynamics of Matter, Germany) Abstract: Plasmonic near-ﬁeld dynamics and its interaction with molecules have been an exciting area of research for years. Numerical simulations can give access to the electrodynamics at the atomic scale; however, given the dimensions of typical nanoplasmonic junctions (e.g. in scanning tunneling microscopes, STM), only classical electromagnetic models are normally used, ignoring the quantum effects on electronic and nuclear properties of adsorbed molecules (e.g. adsorption geometry) as well as of the metallic contacts. Hence, a full quantum dynamical description is sometimes inescapable. In this seminar I will present insights on ab-initio, light-driven, real-time dynamics at the atomistic level in STM cavities, which highlight the role of the electron dynamics (e.g. tunneling) and structural relaxation to properly reproduce experimental features of the local fields. Among other results, the quantitative sampling of atomic-scale waveforms by means of a single-molecule switch, as well as the tip-enhanced Raman scattering of single-atom vibrations in a picocavity, will be discussed. The simulations were done within the time-dependent density functional theory using the Octopus code. Finally, I will also present some outlooks on improving the microscopic description of atomic-scale light-matter interactions in nanoplasmonic cavities by a full ab-initio treatment of electrons, nuclei and photons via a density-functional reformulation of non-relativistic quantum electrodynamics, which leads to coupled Ehrenfest-Maxwell-Pauli-Kohn-Sham equations, also implemented in the Octopus code. Zoom link for advance registration: https://zoom.us/meeting/register/tJYrdOiuqjsrH9RiaIZpscGiqinhCIxVKYZ9 Hybrid seminar ICTP pio@ictp.it

Seminar

13 May 2022

@ Hybrid seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Atomistic Simulation Webinar Series): Ab-initio light-driven dynamics in plasmonic cavities

Room: Luigi Stasi Seminar Room (Leonardo Building) + via Zoom

Speaker(s): Franco Bonafe' (Max Planck Institute for the Structure and Dynamics of MatterHamburg)

Seminar Start Time: 11:00

Europe/Rome An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. This school on random matrices and graphs, machine learning and statistical physics will emphasize the strong connections between these fields, strenghten the analytical toolbox of the students and provide a modern vision of the challenges in high-dimensional statistics. Inference and learning systems have been studied for decades. But the richness of contemporary high-dimensional statistical models (deep neural networks, community detection and inference on graphs, tensor factorization etc) require novel ideas and analytical methods. In particular, blending methods from random matrix theory, statistical physics and information theory is particularly promising. The school aims at providing an overview of recent progresses in this interdisciplinary field by worldwide experts coming from different backgrounds, but who all share a common goal of better modelling complex systems processing large datasets, and understanding their fundamental and algorithmic limitations. Topics: High-dimensional statistics Random matrix theory Statistical physics Information theory Theoretical machine learning Graph theory Lecturers: C. MALE, Bordeaux University, France L. MASSOULIÉ, INRIA Paris, France M. LELARGE, INRIA Paris & Ecole Polytechnique, France M. POTTERS, Capital Fund Management, France P. VIVO, King's College London, UK Grants: A limited number of grants are available to support the attendance of selected participants. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

16 May 2022 - 20 May 2022

@ ICTP

Quantitative Life Sciences

Random Matrices, Random Graphs and Statistical Physics for Machine Learning and Inference | (smr 3703)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Giambiagi Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Sandrine PÉCHÉ (Université Paris, France), Vianney PERCHET (CREST, ENSAE, France), Jean Francois Emmanuel BARBIER (ICTP, Italy), Local Organiser: Jean Barbier (ICTP)

Cosponsor(s): Institut Universitaire de Franceiuf

Support E-Mail: smr3703@ictp.it

**DEADLINE: 01/04/2022**

Europe/Rome Deadline extended: 12 May 2022 An ICTP Virtual Meeting Light Detection and Ranging (LIDAR) is a remote sensing method that is growing rapidly as a method of generating three-dimensional images in applications as diverse as climate science, archaeology, fisheries, and autonomous vehicle navigation. A lidar instrument must be designed with careful consideration of the application-driven needs, but this design is based on some common optical principles. This will be a forum where these principles are taught and discussed, along with representative applications drawn from current research and industry activities. The college will be entirely virtual and abbreviated so that it is reasonably accessible over a wide range of time zones. In addition to lidar there will be special topics related to the UNESCO International Day of Light touching on best practices in outreach, training and research. Topics in Lidar: Atmospheric Lidar Insect and Fish Lidar Lidar for Autonomous Vehicles Coherent Lidar Photon-Counting Compressive Lidar Speakers: J. HOWELL, The Hebrew University of Jerusalem, Israel W. R. BABBITT, Montana State University, USA J. SHAW, Montana State University, USA Special Topics: Educational outreach and gender equity ICTP Laboratory opportunities for developing country scientists Optical Encryption Speakers: I. ASHRAF ZAHID, Quaid-i-Azam University, Islamabad, Pakistan J. F. BARRERA, Universidad de Antioquia, Colombia H. CABRERA, ICTP, Italy Applicants are encouraged to submit a 'Research Abstract'. Please use our templates (available below for download) to format your abstract in PDFs. A number of abstracts may be selected for a short contributed presentation. Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

16 May 2022 - 19 May 2022

@ Online -

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Doreen Sauleek

Organizer(s): Omololu Akin-Ojo (ICTP-EAIFR, Univ. Rwanda), Alessandro Laio (SISSA Trieste Italy), Steve Ndengue (ICTP-EAIFR, Univ. Rwanda), Gian-Marco Rignanesse (Universite Catholique de Louvain (UCL), Belgium), Matthias Scheffler (Fritz-Haber-Institut der Max-Planck-Gesellschaft), ICTP Scientific Contact: Ali Hassanali (ICTP)

Cosponsor(s): EPFLepfl, Mohammed VI Polytechnic Universitympu, Psi-k Networkpsi_k

Priority will be given to those who actively participated in the ML training from October 2021. There is no registration fee. **DEADLINE: 15/04/2022** **DEADLINE: 15/04/2022**

Europe/Rome An ICTP Virtual Meeting The aim of the course is to provide training in the foundations of commutative algebra and algebraic geometry in prime characteristic and to present some of the exciting recent developments. The local theory of prime characteristic singularities is a beautiful and historically important subject. Singularities which are defined in terms of the behaviour of the Frobenius endomorphism have been labeled “F-singularities”. The course gives an introduction on the most prominent F-singularity classes that emerged from Hochster–Huneke’s tight closure theory. Since its introduction in the late 1980s, it has had a dramatic effect on the field of commutative algebra. Tight closure gives unified proofs and strong generalisations of many major theorems in commutative algebra, as well stimulated recent proofs of longstanding conjectures. Topics: An overview of tight closure of ideals Test ideals Direct summands F-rational rings and rational singularities Hilbert-Kunz multiplicities Briançon-Skoda Theorems Big Cohen-Macaulay algebras The absolute integral closure Symbolic powers of ideals The localisation problem Uniform Artin-Rees results Speakers: I. ABERBACH, University of Missouri, USA F. ENESCU, Georgia State University, USA N. EPSTEIN, George Mason University, USA E. GRIFO, University of Nebraska, USA G. LYUBEZNIK, University of Minnesota, USA L. MA, Purdue University, USA T. POLSTRA, University of Virginia, USA I. SWANSON, Purdue University, USA V. TRIVEDI, Tata Institute of Fundamental Research, India K. TUCKER, University of Illinois, USA W. ZHANG, University of Illinois, USA Schedule: Mondays and Wednesdays 1.00-3.00 pm GMT (link) Lectures. There will be 3 lectures and a tutorial on each topic each week. The speakers will provide detailed typed notes of their lectures on the day they finish their lectures. These notes will contain exercises which the participants should try to solve and submit to the tutorial instructor before 12 pm GMT on Fridays. Tutorials. The tutorial on each topic will be held a week after the lectures are delivered. The tutorial instructor will present solutions to problems assigned by the Lecturer that are received from the participants and discuss some material covered during the lectures. Grades will be assigned to the solutions. Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

16 May 2022 - 25 Jul 2022

@ Online -

Mathematics

Graduate Course on Tight Closure of Ideals and its Applications | (smr 3707)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): K. MADDOX (University of Kansas, USA), K. GOEL (University of Utah, USA), M.E. ROSSI (University of Genoa, Italy), N. V. TRUNG (Institute of Mathematics, Vietnam), J. K. VERMA (Indian Institute of Technology Bombay, India), Local Organiser: Lothar Goettsche (ICTP)

Support E-Mail: smr3707@ictp.it

**DEADLINE: 31/03/2022**

Europe/Rome Massimiliano Berti (SISSA) Abstract: I will give an overview of some developments about the long time dynamics of Hamiltonian partial differential equations, regarding the existence of periodic/quasi-periodic/almost periodic solutions, as well as long time Birkhoff normal form results, and chaotic dynamics and instability results. Hybrid Seminar ICTP pio@ictp.it

Seminar

17 May 2022

@ Hybrid Seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Stable and Random motions in Hamiltonian PDEs

Room: room 128, SISSA (via Bonomea 265) + via Zoom

Speaker(s): Massimiliano Berti (SISSA)

Seminar Start Time: 11:00

Europe/Rome Join Zoom Meeting: https://zoom.us/j/95693331745 Meeting ID: 956 9333 1745 Password: 012022 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 36 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

17 May 2022

@ Zoom Meeting + in presence

Phenomenology of Particle Physics

HECAP Seminar: Searching for new physics by forward experiments

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Yasaman Farzan (IPM, Tehran)

Abstract. Despite the hopes and the excellent experimental performance, the main detectors of the LHC, CMS and ATLAS, have not discovered any new elementary particle so far. The search is however ongoing. It is conceivable that new physics involves light feebly-interacting particles that are emitted in the forward direction beyond the angular reach of these detectors. There is a rich program of forward experiments which can test such models. In this talk, I will discuss the potential of FASER$\nu$ and SND@LHC experiments in searching for new physics.

Seminar Start Time: 14:30

Europe/Rome A virtual seminar jointly co-organized by the Science, Technology and Innovation Unit & the Marie Curie Library: Two talks by Dr. Tony Ross-Hellauer and by Prof. Jean-Sébastien Caux Talk 1 - Open science, done wrong, will compound inequalities: Reflections on dynamics of cumulative advantage and threats to equity in open environments Tony Ross-Hellauer (Graz University of Technology) Open Science holds the promise to make scientific endeavours more inclusive, participatory, understandable, accessible, and re-usable for large audiences. However, making processes open will not per se drive wide re-use or participation unless also accompanied by the capacity (in terms of knowledge, skills, financial resources, technological readiness and motivation) to do so. These capacities vary considerably across regions, institutions and demographics. Those advantaged by such factors will remain potentially privileged, putting Open Science’s agenda of inclusivity at risk of propagating conditions of “cumulative advantage”. This talk will summarise work done within the EC Horizon2020 project ON-MERRIT (2019-2022, https://on-merrit.eu/) to investigate these risks, especially as they relate to the stratifications of publishing becoming visible as a result of Open Access models predicated on Article Processing Charges. Talk 2 - SciPost and the reform of scientific publishing Jean-Sébastien Caux (University of Amsterdam) SciPost is a not-for-profit publishing initiative conceived, implemented and run by professional scientists. Leveraging the idea of openness, it aims to increase the utility and meaningfulness of the peer refereeing process. Committed to scientific quality, it aims to offer high-quality publishing venues, thereby bringing control of publishing into the hands of active academics. SciPost also implements a cost-slashing, institutions-backed consortial business model deprecating subscription fees or article processing charges, and aiming to shield scientists from the pernicious influence of profit-making in the publishing industry. This talk will summarize operations since the launch of the portal in 2016, share experiences gained, and provide perspectives for future developments in the reform of scientific publishing. Register in advance for this webinar on Zoom: https://zoom.us/webinar/register/WN_CgU5_rsiQA2ilZET3FtEaA After registering, you will receive a confirmation email containing information about joining the webinar Virtual ICTP pio@ictp.it

Seminar

17 May 2022

@ Virtual

STI Unit - Library Seminar on Open Science: Pitfalls of Open Science and Possible Solutions

Speaker(s): Tony Ross-Hellauer (Graz University of Technology)Jean-Sébastien Caux (University of Amsterdam)

Seminar Start Time: 15:00

Europe/Rome Lecture 8 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract The number of short-term and highly localized phenomena, such as thunderstorms, hailstorms, wind gusts or tornadoes, is expected to grow further in the coming years, with important repercussions in air traffic management activities (ATM). One of the main challenges for meteorologists is to improve the location and timing of such events that develop on small spatial and temporal scales. In this regard, the H2020 Satellite-borne and IN-situ Observations to Predict The Initiation of Convection for ATM (SINOPTICA) project aims to demonstrate that numerical weather forecasts with high spatial and temporal resolution, benefiting from the assimilation of radar data, in situ weather stations, GNSS and lightning data, could improve the prediction of severe weather events for the benefit of air traffic control (ATC) and ATM. To this purpose the output of the numerical simulations, carried out with the Weather Research and Forecasting (WRF) model using a cycling 3D-VAR assimilation technique, and the output of a nowcasting algorithm, will be integrated into the Arrival Manager 4D-CARMA (4-Dimensional Cooperative Arrival Manager), an adaptive air traffic sequencing and management system for controllers. 4D-CARMA upgrades 4D trajectories avoiding areas affected by adverse phenomena with the aims of increasing flight safety and reducing controllers' and pilots' workload. The results prove that it is possible to improve the prediction of the above-mentioned events in line with expectations and ATM needs. Zoom Event ICTP pio@ictp.it

Seminar

17 May 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Data Assimilation and Nowcasting for Air Traffic Management Purposes. Results from SINOPTICA Project

Speaker(s): MAZZARELLA Vincenzo, Int'l. Centre for Environmental Monitoring, Italy

Seminar Start Time: 15:30

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJ0pfuirrjsoHNaP9S-AAAGJitkguz5r_2mG After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: In this talk we will discuss weighted endpoint estimates for the Hardy-Littlewood maximal function on the infinite rooted $k$-ary tree. Namely, we will show a variant of the Fefferman-Stein estimate with respect to the weights $(w, M_{s}w)$. Moreover, it is shown it is sharp, in the sense that it does not hold in general if $s=1$. This result is a generalization of the unweighted case ($w\equiv1$) independently obtained by Naor-Tao and Cowling-Meda-Setti. We will also present more general sufficient conditions for the strong estimates in the case $p>1$. This talk is based on joint works with Israel Rivera-Ríos (UNS&UMA) and Martíin Safe (UNS). Online ICTP pio@ictp.it

Seminar

17 May 2022

@ Online

Mathematics

Theory of weights in rooted k-trees

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Sheldy Ombrosi (Universidad Nacional del Sur)

This will be a hybrid seminar. All are very welcome to join either online or in person. Venue: Luigi Stasi Seminar Room (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 16:00

Europe/Rome A panel discussion that will focus on how science can help to bring renewable energy conversion to the forefront of the world's future energy landscape. Panellists: Richard Catlow University College London, UK Co-President, InterAcademy Partnership Patchanita Thamyongkit Chulalongkorn University, Thailand (and 2013 ICTP Prize winner) (via Zoom) Moderator: Stephane Kenmoe University of Duisburg-Essen (and ICTP Diploma alumnus) Registration ICTP ICTP pio@ictp.it

Colloquium

18 May 2022

@ ICTP

The Importance of Basic Sciences in Addressing the Global Energy Crisis

Address: Strada Costiera, 11 Trieste

Room: Leonardo Building - Budinich Lecture Hall

Cosponsor(s): International Year of Basic Sciences for Sustainable Development iybssd

Colloquium Start Time: 15:00

Europe/Rome Register in advance for this meeting: https://zoom.us/meeting/register/tJAldOuoqTkiEtDRPyfZcKmD4WXPD29fNcow After registering, you will receive a confirmation email containing information about joining the meeting. Abstract: In this lecture compute the horizontal Vafa-Witten invariants, by using Mochizuki's formula, which allows to reduce the computation to Hilbert schemes of points. Then one can localization in a very similar way as for the vertical Vafa-Witten invariants. This computation confirms some of the predictions of S-duality in ranks 2 and 3. Furthermore, combining with the computations of $S$-duality we predict the generating functions for the horizontal Vafa-Witten invariants in rank at most 5. Online ICTP pio@ictp.it

Seminar

18 May 2022

@ Online

Mathematics

ICTP/IGAP Algebraic Geometry Seminar: Mochizuki's formula and the horizontal Vafa-Witten invariants

Room: Leonardo Building - Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

This will be a hybrid seminar. All are very welcome to join either online or in person. Venue: Luigi Stasi Lecture Room (ICTP Leonardo Da Vinci Building), for those wishing to attend in person.

Seminar Start Time: 16:30

Europe/Rome Join Zoom Meeting link: https://zoom.us/j/98935097004 Meeting ID: 989 3509 7004 Password: 013454 Hybrid presence c/o Euler Lecture Hall + zoom meeting. Kindly note that the maximum number of participants in presence is 36 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

19 May 2022

@ Zoom Meeting + in presence

Strings and Higher Dimensional Theories

HECAP Seminar: Gravity & Thermodynamics

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Shahin Sheikh Jabbari (IPM, Tehran)

Abstract. Last 50 years' developments have revealed deep relations between thermodynamics and gravity as formulated in Einstein general relativity, despite their apparent differences. These relations seem so fundamental and deep that they have prompted the idea that they may be telling us about the very nature of gravity. In this talk I review these salient features and discuss recent developments in the connection between gravity and thermodynamics. In particular, I describe how general covariance in gravity theories on spacetimes with a boundary leads to laws of thermodynamics at the boundary. We briefly discuss implications of these considerations for questions regarding black holes.

Seminar Start Time: 14:30

Europe/Rome An ICTP-IAEA Hybrid Meeting. You can submit your application for participation in presence or online. The event aims to provide students, young researchers, and young professionals with critical skills and tools in areas such as mathematical and computational techniques for modelling and simulation of complex nuclear systems, high performance computing, and computational methods for processing and analyzing large data sets, applied in nuclear science and engineering. Topics Basic concepts/tools for computational nuclear science and engineering Fundamentals of nuclear observable challenges (computational methods for nuclear data; nuclear data for high fidelity, high performance reactor modelling and simulation) Advanced modelling and simulation methodologies (integrated multi-physics modelling for nuclear fusion plasma science; nuclear physic analysis in support of reactor design; reactor multi-physics modelling combined with digital measurement data) Open source data and codes for plasma/fusion/fission science and engineering Advanced computational methods (ML; algorithm development for data analysis in nuclear research; HPC; high performance humans in computing; data sciences for reactor systems) Lecturers: L. CHACON, Los Alamos National Laboratory, USA J. CITRIN, DIFFER, Netherlands C. FIORINA, Swiss Federal Institute of Technology, Lausanne, Switzerland B. FORGET, Massachusetts Institute of Technology, USA A. GOMEZ TORRES, ININ, Mexico R. JAUREZ MANAS, Universidad Nacional de Educación a Distancia, Spain M. KUCHERA, Davidson College, USA N. MURPHY, Center for Astrophysics | Harvard & Smithsonian, USA M.G. PIA, INFN, Italy J. RAGUSA, Texas A&M University, USA C. REA, Massachusetts Institute of Technology, USA G. SCHNABEL, Department of Nuclear Sciences and Applications, IAEA, Austria P. SHRIWISE, Argonne National Laboratory, USA N. TOURAN, TerraPower, USA Call for Contributed Abstracts: In the application form, all applicants are encouraged to submit an abstract. A limited number of abstracts will be selected for oral/poster presentation. If applicable (see Grants section below), presenters may be awarded a grant to support their in-person attendance. Please make sure you use our templates to generate PDFs with 'Contributed Abstracts'. Templates are available below for download. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries and to those submitting an abstract. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

23 May 2022 - 27 May 2022

@ ICTP

Joint ICTP-IAEA Advanced School/Workshop on Computational Nuclear Science and Engineering | (smr 3709)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Matteo BARBARINO (IAEA), Chirayu BATRA (IAEA), Kalle HEINOLA (IAEA), Jean-Christophe SUBLET (IAEA), Local Organiser: Nicola Seriani (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3, American Physical Societyaps

Support E-Mail: smr3709@ictp.it

**DEADLINE: 30/04/2022****Note: the deadline on the 27th March 2022 is for all applications: online and all in-person applications. The deadline on the 30th of April 2022 is for only online applications.**

Europe/Rome An ICTP Online Meeting Communications skills, professional inter- and intra-personal skills, and career management are all much easier to learn and benefit from when taught explicitly rather than picked up casually in the course of technical training. This workshop is designed for scientists of all ages interested in being more successful scientists, colleagues, and mentors. Topics Scientific Presenting Scientific Writing & Editing Communications Barriers Emotional Intelligence in the Workplace Mentoring Decision Making & Leadership Career Planning & Advancement Networking Cross-Cultural Collaboration Social Mediafor Scientists Getting & Giving Feedback Building Effective Work Cultures Customizing Messaging for Audiences Conflict Management Science Diplomacy & Policy Science Outreach & Engagement Call for participants: Scientists of all ages are welcome to apply. This workshop is suitable for PhD students, postdoctoral fellows, early career scientists, and senior scientists looking to become better managers and mentors, and teach professional skills to their mentees. Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

23 May 2022 - 27 May 2022

@ Online -

New Research Areas (Physics and Development)

Condensed Matter and Statistical Physics

Dissipation Mechanisms in Nano/Mesoscale Tribological Systems | (smr 3713)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Ernst MEYER (University of Basel, Switzerland), Andrea VANOSSI (CNR-IOM, Italy), Quanshui ZHENG (Tsinghua University, China), Erio TOSATTI (ICTP/SISSA, Italy), Local Organiser: Erio Tosatti (SISSA)

Cosponsor(s): Tsinghua Universitytsing, University of Baselunibas, International School for Advanced Studiessissa3, Istituto per l’Officina dei Materialicnr-iom2

Support E-Mail: smr3713@ictp.it

**DEADLINE: 20/05/2022****Note: the deadline on 20 April 2022 is for all applications including those needing financial support and/or visa and on 20 May 2022 - all other applications.**

Europe/Rome An ICTP Virtual Meeting Please submit your application on ICTP portal (on the left "Apply here") within DEADLINE 1 May 2022 In the application OU Certificate and supporting documents are mandatory The Joint Summer School on Modelling Tools for Sustainable Development 2022 (#SDSummerSchool) will be held from 30th May to 16th June. Hosted by the International Centre for Theoretical Physics (ICTP), this is a fantastic opportunity to get free training, access to discussion forums, and coaching skills in models and tools for all of your energy planning needs. There are six tracks listed below, each focusing on different tools. Note that you must complete the Open University course of your one desired track and obtain a certificate as part of your application to the Summer School (see this link to the courses and video instructions on how to enrol on a OU course). The tracks are developed with UNDESA, IAEA, UNDP, IRENA, The World Bank Group, GIZ, the OpTIMUS community of practice, several universities, and the Climate Compatible Growth (#CCG) program. The Summer School is split into two parts: (1) you will be trained to build on the skills you obtained from the Open University course; (2) you will use your new skills to conduct analyses on country-specific case studies, with assistance being provided from trainers. Please see programme overview at the bottom of this page. Besides receiving the certificate of completion from the Open University Course, you will also receive an ICTP certificate on attendance and successful completion of the Summer School (obtained after attending the Summer School). Tracks: OnSSET/The Global Electrification Platform Energy and Flexibility Modelling: OSeMOSYS & FlexTool Financial Analysis of Power Sector Projects using the FinPlan Model Energy demand assessment and scenarios: MAED and EBS tools Introduction to CLEWs Agent-based energy systems modelling: MUSE For detailed description of the different tracks, click here. Prerequisites: The prerequisites to be admitted to the Summer School are provided at the bottom of this page. Computer & connection requirements: Note that participants will require a computer with stable internet access to participate in the training. It is recommended that participants have at least 8 GB of RAM and a relatively new computer. Nonetheless, specific tracks have additional computer requirements: - Energy and Flexibility Modelling: OSeMOSYS & FlexTool: Windows 10 computer with Access Database OR Mac OS, 8GB RAM, MS Office. - Introduction to CLEWs: Windows 10 computer, 8GB RAM. Troubleshooting Support: Support in completing the OU tracks will be provided during the application period on ZOOM on 23 and 30 of March and on 6, 13 and 27 of April 2022 until the application period closes. If this time does not suit you, please contact General Inquiries and we may be able to allocate a different time to assist you. Zoom links to troubleshooting sessions by track are published here: Link to Track Time OnSSET/The Global Electrification Platform Energy and Flexibility Modelling: OSeMOSYS & FlexTool Financial Analysis of Power Sector Projects using the FinPlan Model Energy demand assessment and scenarios: MAED and EBS tools Introduction to CLEWs Agent-based energy systems modelling: MUSE 13.00 CET/Vienna time 13.00 CET/Vienna time 13.30 CET/Vienna time 13.30 CET/Vienna time 13.00 CET/Vienna time 14.00 CET/Vienna time For selected applicants the Induction Session will be held on the 23rd of May, from 11:00 GMT to 15:00 GMT. Registration: There is no registration fee. However, competition for space is very high and limited. Online - ICTP pio@ictp.it

Activity

30 May 2022 - 16 Jun 2022

@ Online -

Joint Summer School on Modelling Tools for Sustainable Development 2022 | (smr 3763)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Mark HOWELLS (Loughborough University & Imperial College London, UK), Carla CANNONE (Loughborough University & Imperial College London, UK), Naomi TAN (Loughborough University & Imperial College London, UK), Rudolf YEGANYAN (Loughborough University & Imperial College London, UK), Riccardo FARNETI (ICTP, Italy), Fred KUCHARSKI (ICTP, Italy), Adrian Mark TOMPKINS (ICTP, Italy), Local Organiser: Adrian Mark Tompkins (ICTP)

Cosponsor(s): OpTIMUS Community of Practiceoptimus1, Foreign Commonwealth and Development Office (FCDO)ukaid, Imperial College Londonicl2, International Atomic Energy Agencyiaea3, KTH ROYAL INSTITUTE OF TECHNOLOGYkth1, Loughborough Universitylboro, UN Department of Economic and Social Affairsundesa1, United Nations Development Programmeundp1, United Nations Economic Commission for Africauneca, University of Cambridgecambridge, University of Oxfordoxford2, The Open Universityopenuniv, The World Bank Groupwbank2, Simon Fraser UniversitySFU, The Climate Compatible Growth (#CCG) programccg1

Support E-Mail: smr3763@ictp.it

**DEADLINE: 01/05/2022**

Europe/Rome Carolina Vera is Full Professor at the School of Sciences of the University of Buenos Aires (UBA) and Principal Researcher of Argentina National Council of Sciences (CONICET). She has been the Director of the Argentinean-French Institute for Climate Studies and its impacts, jointly sponsored by UBA, CONICET, of Argentina and "Centre national de la recherche scientifique" (CNRS), Deputy Dean of the School of Sciences of UBA and Director of the Center for Atmosphere and Ocean Research (CIMA)/ UBA- CONICET. Between December 2019 and September 2021, she was Chief staff of the Minister of Science, Technology, and Innovation of Argentina. Dr. Vera has long research experience on understanding, simulating and predicting climate variability and change and its impact on socioeconomic sectors, like agriculture. She coordinated many recognized international research projects and programs related with climate variability and change. She has authored several peer-reviewed scientific journal articles and book chapters. She was awarded by the American Meteorological Society with the “Cleveland Abbe” Award, "For unselfish devotion to advancing and communicating climate science to decision makers and stakeholders in South America and across the world". She is currently Vice-Chair of WG1Bureau of the IPCC (Intergovernmental Panel for Climate Change). She was Coordinator of “Pampa Azul: the Interministerial initiative of Argentina for Ocean Sciences” and Coordinator of the report on the physical basis of climate change for the 3rd national communication of Climate Change of Argentina. She has served in International Panels like the Scientific Advisory Panel of the World Meteorological Organization, the Scientific Advisory Committee of the Inter-American Institute for Global Change (IAI), Future Earth Science Committee, World Climate Research Program (WCRP) Joint Scientific Committee, Independent Science Panel of the Research Program on Climate Change, Agriculture and Food Security (CCAFS), Scientific Committee of the Transformation to Sustainability Program of International Social Science Council (ISSC), and the Committee of the American Meteorological Society for Meteorology and Oceanography of the Southern Hemisphere. ABSTRACT: Variability in regional climate arises from natural and anthropogenic forcings, internal variability including the local expression of large-scale remote drivers, and the feedbacks between them. Due to the many possible drivers of variability and change, quantifying the interplay between internal variability and any externally forced component is crucial in attempts to attribute causes of regional climate changes and to increase the confidence on future regional climate change information. I will first briefly introduce the sources of regional variability that can be grouped in forcings controlling regional climate and the internal drivers of regional climate variability. I will discuss ways of managing uncertainties in regional climate change information and how to identify the physical causes of past and future regional climate change. I will then present a regional climate change attribution study of precipitation trend in a specific region and discuss the robustness and emergence of anthropogenic signal in future regional climate change. I will end by presenting the storylines methodology as a way of constructing regional climate information providing a set of physically coherent descriptions of plausible future changes at regional scales. The Colloquium will be held in the Budinich Lecture Hall on the ICTP Campus. All are welcome to attend. Light refreshments will be served after the event. (A separate Zoom ID will be available in due course for those who wish to participate via remote.) ICTP ICTP pio@ictp.it

Colloquium

30 May 2022

@ ICTP

ICTP Colloquium on "Interplay between Natural Variability and Anthropogenic Climate Change at Regional Scales" by Prof. Carolina Vera, University of Buenos Aires - CONICET, Argentina

Address: Strada Costiera 11 34151 Trieste Italy

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): by Prof. Carolina Vera, University of Buenos Aires - CONICET, Argentina

Colloquium Start Time: 16:00

Europe/Rome Lecture 9 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract Climate model simulations are known to be sensitive to parameter choices in the sub grid-scale representation of deep convection, as deep convection plays a critical role in the transport of heat and momentum globally. Over the years, it has also become evident that the intermodel spread in the warming response to anthropogenic forcing is largely driven by uncertainties in the magnitude of the cloud feedback in the tropics, specifically the low cloud feedback. In this talk, I will discuss how parameterization differences among models and changes to deep convection in response to anthropogenic warming are likely contributing significantly to the intermodel spread in the tropical cloud feedback. I will present evidence of two physical pathways linking deep convection to low clouds and their response to anthropogenic forcing: the "Radiation-Subsidence" Pathway and the "Stability" Pathway. In a warmer world, the tropical overturning circulation is projected to weaken. We find that the overturning circulation does not weaken as much in climate models with more stable tropospheres, which ultimately leads to a more positive low cloud feedback (Stability Pathway). Differences in deep convective parameterization modifying deep convection onset thresholds – such as the fractional rate of entrainment into convective updrafts – can contribute significantly to this intermodel spread in static stability. Additionally, changes to the total area occupied by deep convection in the tropics modify the high cloud fraction, which is linked to subsidence changes and the low cloud feedback (Radiation-Subsidence Pathway). Results from both the Coupled Model Intercomparison Project (CMIP6) and a perturbation physics ensemble in the Community Earth System model (NCAR CESM) will be presented and discussed. Zoom Event ICTP pio@ictp.it

Seminar

31 May 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - Impacts of Deep Convection on the Tropical Low Cloud Feedback and Climate Sensitivity

Speaker(s): SCHIRO Kathleen, University of Virginia, USA

Seminar Start Time: 15:30

Europe/Rome ONLINE APPLICATION IS OPEN! PLEASE USE THE "APPLY HERE" BUTTON ON THE LEFT. Applicants are encouraged to present their case studies. Candidates wishing to do so will be requested to provide a short abstract during application process. During selection of applications, priority will be given to Asian candidates that are part of the ICTP TinyML Academic Network. Interested candidates from other regions: - Potential candidates from Latin America are invited to consider applying for a dedicated edition of this online activity: Latin American Regional Workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices (see: smr.3721) - The African Regional Workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices has been held from 25 to 29 April 2022 (see: smr.3708) * * * TinyML is a subfield of Machine Learning focused on developing models that can be executed on small, real-time, low-power, and low-cost embedded devices. This allows for new scientific applications to be developed at an extremely low cost and at large scale. The TinyML process starts with collecting data from IoT devices, then training the collected dataset to extract knowledge patterns; these patterns are then packaged into a TinyML model that considers the target microprocessor’s limited resources such as memory and processing power. The resulting model is then deployed on embedded devices where it is used to evaluate new sensor data in real-time. Typically, power requirements are in the mW range and below which enables a variety of use-cases targeting battery operated devices. TinyML represents a collaborative eﬀort between the embedded power systems and Machine Learning communities, which traditionally have operated independently. TOPICS • ML general concepts • Introduction to TinyML • Getting started with the TinyML training kit • Examples of TinyML applications • Scientific Applications of ML Online - ICTP pio@ictp.it

Activity

6 Jun 2022 - 10 Jun 2022

@ Online -

Asian regional workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices | (smr 3715)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Online

Secretary: Nicoletta Ivanissevich

Organizer(s): Rosdiadee Nordin (Universiti Kebangsaan Malaysia), Local Organiser: Marco Zennaro (ICTP)

Cosponsor(s): Harvard University, John A. Paulson School of Engineering and Applied Scienceshseas1, Universiti Kebangsaan Malaysiaukm, seeed studioseeed

Priority will be given to Asian participants that are part of the ICTP TinyML Academic Network**DEADLINE: 25/05/2022**

Europe/Rome An ICTP Meeting in presence Microbial communities populate every corner of our planet, providing essential services to the ecosystems they are part of. The forces shaping their organization act on wide spatial and temporal scales. The fundamental constituents of communities are individual cells, which, typically, experience a local environment of the order of tens of microns and duplicate as fast as 20 minutes. On the other hand, microbial communities modify the environment on a scale of tens of meters. Understanding how the interactions, the environmental fluctuations, and the phenotypic heterogeneity occurring at the micro-scale affect the large-scale properties of microbial communities is one of the main challenges in microbial ecology. More broadly, microbial communities are the prototypical example of complex adaptive systems: a large number of heterogeneous, adaptive, agents interact at a microscopic scale giving rise to emergent properties at the macroscopic scale. This huddle aims at bringing together experimentalists and theorists to develop new understanding and new approaches to connect the fundamental biological processes occurring at the microscale with the phenomena observed at the macroscale. Topics: Microbial ecology Theoretical community ecology Spatial ecology Eco-evolutionary dynamics Stochastic processes Single-cell experimental ecology Macroecology Ecological networks Population genetics Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

6 Jun 2022 - 24 Jun 2022

@ ICTP

Quantitative Life Sciences

Eco-evolutionary Dynamics of Microbial Communities Across Scales | (smr 3714)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Giambiagi Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Otto X. CORDERO (MIT), Alma DAL CO (Swiss National Centre of Competence in Research for Microbiomes), Silvia DE MONTE (CNRS, Institute of Biology of ENS), Ricardo Martinez GARCIA (ICTP-SAIFR), Rodrigo ROCHA (Universidade Federal de Santa Catarina), Antonio CELANI (ICTP), Matteo MARSILI (ICTP), Emanuele PANIZON (ICTP), Local Organiser: Jacopo Grilli (ICTP)

Support E-Mail: smr3714@ictp.it

**DEADLINE: 31/03/2022**

Europe/Rome An ICTP-IAEA Virtual Meeting This School is a certificate course introducing participants to the foundation skills and knowledge required to successfully manage and lead a nuclear energy programme. The target audience for this training event is new and young nuclear professionals entering the field of nuclear energy and nuclear technology. Jointly organized by ICTP, the objectives of this training event are to: Provide an international educational experience and an opportunity for worldwide networking to future leaders and managers of nuclear energy; Raise awareness of participants about recent developments in nuclear energy; Broaden participants’ understanding on key issues and challenges associated with peaceful uses of nuclear energy; and Introduce participants to the leadership and managerial competencies needed to successfully run the national nuclear energy programme. Topics: Introduction to the IAEA and nuclear technology IAEA and its services Overview of nuclear applications Climate change and the economics of nuclear energy An integrated approach to human resource development and nuclear knowledge management Management and leadership in a nuclear organization Nuclear safety Nuclear security Nuclear safeguards Emergency planning, preparedness and response Radiation safety and protection Nuclear law Nuclear power Nuclear fuel cycle and waste management Registration: There is no registration fee. Online - ICTP pio@ictp.it

Activity

6 Jun 2022 - 17 Jun 2022

@ Online -

Joint ICTP-IAEA Nuclear Energy Management School | (smr 3716)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Maria Elena URSO (IAEA, Austria), Alesia IUNIKOVA (IAEA, Austria), Local Organiser: Claudio Tuniz (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3

Support E-Mail: smr3716@ictp.it

**DEADLINE: 20/03/2022**

Europe/Rome Lecture 10 of the ICTP/UniTN/UniAQ Joint International Seminar Series on Weather and Climate: From Fundamentals to Applications Register in advance for this meeting: https://zoom.us/meeting/register/tJAuce-orjIuGdY-H52Uoj03paRhzpIoIwBl Abstract Convective organization at mesoscales (hundreds of kilometres) is ubiquitous in the tropics, but the physical processes behind it are still poorly understood. Organization can be forced by the large scales, such as surface temperature gradients. But convective organization can also arise from internal feedbacks, such as "self-aggregation" feedbacks. Self-aggregation refers to the spectacular ability of deep clouds to spontaneously cluster in space despite spatially homogeneous conditions and no large-scale forcing, in high-resolution cloud-resolving models (CRMs).Because of the idealized settings in which self-aggregation has been studied (typically radiative-convective equilibrium (RCE) over homogeneous sea-surface temperature (SST)), its relevance to the real tropics is debated. In this presentation, we will investigate the impact of removing some of these idealizations on the aggregation process. Specifically, we will investigate the impact of inhomogeneous SSTs on convective aggregation. In a first step, we will investigate how an idealized warm circular SST anomaly, referred to as "hot-spot", helps organize convection, and how self-aggregation feedbacks modulate this organization. The presence of a hot-spot significantly accelerates aggregation, particularly for larger domains and warmer/larger hot-spots, and extends the range of SSTs for which aggregation occurs. In that case, the aggregation onset results from a large-scale circulation induced by the hot-spot.In a second step, we will investigate the interaction of aggregation with an interactive surface (local SST evolving according to the surface energy budget). The results will be interpreted in light of a simple model for the boundary layer circulation. Zoom Event ICTP pio@ictp.it

Seminar

14 Jun 2022

@ Zoom Event

Earth System Physics

ICTP/UniTN/UniAQ Joint Seminar - How Do Ocean Temperature Anomalies Favor or Disfavor the Aggregation of Deep Convective Clouds?

Speaker(s): MULLER Caroline, Institute of Science and Technology, Austria

Seminar Start Time: 15:30

Europe/Rome Subir Sachdev is a condensed matter physicist well known for his research on quantum phase transitions and its application to a variety of quantum materials, such as the high temperature superconductors. His research seeks to illuminate the boundary between the everyday world we live in—in which many but not all phenomena can be explained through classical physics—and the subatomic world of quantum physics. These two worlds come together at a "quantum phase transition”, where there is a change in the macroscopic character of the quantum state describing a many-particle system, and manifestations of quantum entanglement appear naturally at long distances. His book Quantum Phase Transitions (Cambridge University Press, 1999 and 2011) has formed the basis of much subsequent research. More recently he pioneered the application of string theory to the study of quantum phase transitions in systems of ultracold bosons, and to the “strange metal” state found in many modern materials. Sachdev was educated in India before attending MIT and Harvard where he obtained his PhD degree in theoretical physics. He held professional positions at Bell Labs (1985–1987) and at Yale University (1987–2005), where he was a Professor of Physics, before returning to Harvard as Herchel Smith Professor of Physics. He also holds a visiting position as the James Clerk Maxwell Chair in Theoretical Physics at the Perimeter Institute. He is a member of the National Academy of Sciences, fellow of the American Physical Society and has been awarded several honors, among them the Lorentz Chair, Instituut-Lorentz, Leiden University in 2012, and the Salam Distinguished Lecturer at the International Center for Theoretical Physics, Trieste in 2014. He is a former Member of ICTP's Scientific Council. Abstract of the Colloquium: Entanglement is the strangest feature of quantum theory, often dubbed ''spooky action at a distance’’. Quantum entanglement can occur on a macroscopic scale with trillions of electrons, leading to novel superconductors which can conduct electricity without resistance even at relatively high temperatures. These superconductors also display a “strange metal” regime in which individual electrons lose their identity. Related entanglement structures arise across the horizon of a black hole, and give rise to Hawking’s quantum paradox. I will introduce and describe these long-standing problems in two very different fields of physics, and review progress in resolving them using insights from the Sachdev-Ye-Kitaev model. All are welcome to attend. Light refreshments will be served on the Leonardo Building Terrace after the event. ICTP ICTP pio@ictp.it

Colloquium

14 Jun 2022

@ ICTP

Joint ICTP-SISSA Colloquium by Prof. Subir Sachdev, Harvard University, USA, on "Quantum Entanglement at all Distances"

Address: Strada Costiera 11 34152 Trieste, Italy

Room: Leonardo Building - Budinich Lecture Hall

Speaker(s): Prof. Subir Sachdev, Herchel Smith Professor of Physics at Harvard University, USA

Colloquium Start Time: 16:00

Activity

17 Jun 2022

@ Online -

Joint Summer School Round Table Meeting | (smr 3767)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Online

**DEADLINE: 01/06/2022**

Europe/Rome The European Dialogue on Internet Governance (EuroDIG) is an open multi-stakeholder platform to exchange views about the Internet and how it is governed. First organized in 2008 by several organizations, government representatives and experts, it fosters dialogue and collaboration with the Internet community on public policy for the Internet culminating in an annual conference that will take place in Trieste in 2022. EuroDIG ‘Messages’ are prepared and presented to the Internet Governance Forum (IGF). ICTP ICTP pio@ictp.it

Hosted Activity

Secretary: Doreen Sauleek

Organizer(s): Mikhail Belolipetsky (IMPA), Dimitar Dimitrov (UNESP), Harald Helfgott (Göttingen/CNRS), Matilde Lalín (Université de Montréal), Yuri Lima (Universidade Federal do Ceara), Suely Lima (IMPA), Roberto Miatello (Universidad Nacional de Córdoba), Ariel Pacetti (Universidade de Aveiro), Plinio Pino (UFF), Fernando Rodriguez-Villegas (ICTP), ICTP Scientific Contact: Emanuel Carneiro (ICTP)

Cosponsor(s): Instituto Serrapilheiraserra, Alexander von Humboldtavh, INCTMat inctmat, IMPAimpa, CNPqcnpq

**DEADLINE: 15/05/2022** Grants will be given to a selected number of participants. On-site participants should either have been fully vaccinated or recovered from COVID. **DEADLINE: 15/05/2022**

Europe/Rome Join Zoom Meeting: https://zoom.us/j/92144815303 Meeting ID: 921 4481 5303 Passcode: 012468 Kindly note that the maximum number of participants in presence is 36 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

21 Jun 2022

@ Zoom Meeting + in presence

Strings and Higher Dimensional Theories

HECAP Seminar: Title to be announced

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Abhiram Kidambi (Kavli IPMU, Tokyo)

Seminar Start Time: 14:30

Europe/Rome Join Zoom Meeting: https://zoom.us/j/99626576558 Meeting ID: 996 2657 6558 Passcode: 018136 Kindly note that the maximum number of participants in presence is 36 pp. Zoom Meeting + in presence ICTP pio@ictp.it

Seminar

23 Jun 2022

@ Zoom Meeting + in presence

Phenomenology of Particle Physics

HECAP Seminar: Title to be announced

Room: Leonardo Building - Euler Lecture Hall

Speaker(s): Luca Vecchi

Seminar Start Time: 14:30

Europe/Rome An ICTP Hybrid Meeting “Youth in high dimensions” gives to young researchers from academia and industry the opportunity to gather and present recent results on high-dimensional statistical problems, in areas ranging from machine learning and inference to neuroscience or statistical physics. Typical problems in high-dimensions include estimating noisy signals (compressed sensing, PCA and tensor decomposition), analysing (deep) neural-networks, detecting communities in large networks, or modelling disordered spin systems. These seemingly unrelated problems share many similarities in their phenomenology and in the tools used to analyse them. The core of the field is made of a very active, diverse and quickly expanding community of physicists, computer scientists, mathematicians, information theorists and engineers, with the common desire to tackle increasingly challenging problems at the forefront of data science. This conference aims at reinforcing the links among this interdisciplinary community, and in particular of its youngest theory-oriented members, and to bring forward the latest development happening in the high-dimensional world. Topics: High-dimensional statistics Statistical physics Machine learning Complex systems Random matrix theory Computational neuroscience Speakers: A. ALTIERI, Université Paris Cité, France A. BIETTI, NYU, USA E. CORNACCHIA, EPFL, Switzerland N. FLAMMARION, EPFL, Switzerland L. FOINI, CNRS IPhT Université Paris-Saclay, France M. GEIGER, MIT, USA J. HAN, Flatiron Institute, USA J. KADMON, The Hebrew University, Israel J. KO, ENS Lyon, France M. LINDSEY, NYU, USA B. MCKENNA, IST, Austria C. PEHLEVAN, Harvard University, USA N. RAZIN, Tel Aviv University, Israel D. SCHRÖDER, ETH, Switzerland M. SELLKE, Stanford University, USA G. SICURO, King’s College London, UK C. THRAMPOULIDIS, University of British Columbia, USA Y. WEI, University of Pennsylvania, USA F. YANG, ETH, Switzerland Y. ZHU, University of California, USA Please note in the application form you will be asked to submit a poster abstract. A number of abstracts will be selected for the poster session. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it

Activity

27 Jun 2022 - 30 Jun 2022

@ ICTP

Quantitative Life Sciences

Youth in High-Dimensions: Recent Progress in Machine Learning, High-Dimensional Statistics and Inference | (smr 3719)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Marylou GABRIÉ (Ecole Polytechnique, France ), Sebastian GOLDT (SISSA, Italy), Marco MONDELLI (IST, Austria), Jean BARBIER (ICTP, Italy), Local Organiser: Jean Barbier (ICTP)

Support E-Mail: smr3719@ictp.it

**Note: the deadline on the 8th May 2022 is for all applications needing financial support and/or visa. The deadline on the 20th of June 2022 is for only online applications.****DEADLINE: 20/06/2022**

Europe/Rome Link to Web Page International Organizing Committee O. Aharony (Weizmann I.) M. Alishahiha (IPM, Teheran) D. Anninos (King's College, London) F. Ardalan (IPM, Teheran) H. Arfaei (IPM, Teheran) A. Dabholkar (ICTP, Trieste) R. Gopakumar (ICTS, Bengaluru) E. Kiritsis (U. of Crete and APC, Paris) D. Luest (LMU, Munich) K. Narain (ICTP, Trieste) A. Naseh (IPM, Teheran) V. Niarchos (U. of Crete and Durham University) Y. Oz (Tel Aviv University) K. Papadodimas (CERN) E. Rabinovici (Hebrew U., Jerusalem) S. Wadia (ICTS and Tata I., Mumbai) E. Witten (IAS, Princeton) Participation is by invitation only. Chania, Crete - Greece ICTP pio@ictp.it

Activity

4 Jul 2022 - 10 Jul 2022

@ Chania, Crete - Greece

High Energy Cosmology and Astroparticle Physics

12th Crete Regional Meeting in String Theory | (smr 3722)

Secretary: Nadia Van Buuren

Organizer(s): Dionysis Anninos (King's College, London), Elias Kiritsis (U. of Crete and APC, Paris), Vasilis Niarchos (U. of Crete), Kyriakos Papadodimas (CERN), ICTP Scientific Contact: Joan Elias Miro (ICTP)

**DEADLINE: 15/06/2022**

Europe/Rome An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. The purpose of the School is to provide an introduction to the current state of research in cosmology and astroparticle physics. It is intended for beginning graduate students, as well as more senior non-expert researchers interested in the field. During the School, the 2021 Dirac Medal Ceremony will take place to honor the contributions of A. Buonanno, T. Damour, F. Pretorius, and S. Teukolsky to the field of gravitational waves. Topics: CMB Dark Energy Gravitational Waves Inflation Statistical Methods in Cosmology Structure Formation Speakers include: A. PARANJAPE, IUCAA, INDIA M. PELOSO, Padua University, Italy F. PRETORIUS, Princeton University, USA B. SHERWIN, University of Cambridge, UK S. TEUKOLSKY, Caltech and Cornell University, USA R. TROTTA, SISSA, Italy and Imperial College London, UK F. VERNIZZI, IPhT, CEA, France Participants are encouraged to submit abstracts for contributed talk. A number of short oral presentation slots will be available for some of them upon selection. Accepted participants will be able to attend in remote or — strictly following Italian sanitary rules as they will be applicable at the time of the conference, and depending on the very limited number of available places — in person. As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

4 Jul 2022 - 15 Jul 2022

@ ICTP

High Energy Cosmology and Astroparticle Physics

Summer School on Cosmology 2022 | (smr 3720)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Ravi K. SHETH (University of Pennsylvania, USA), Paolo CREMINELLI (ICTP, Italy), Mehrdad MIRBABAYI (ICTP, Italy), Local Organiser: Mehrdad Mirbabayi (ICTP)

Cosponsor(s): Italian Institute for Nuclear Physicsinfn3

Support E-Mail: smr3720@ictp.it

**DEADLINE: 15/06/2022****Note: the deadline on the 1st of May 2022 is for all applications needing financial support/visa. The deadline on the 15th of June 2022 is for other applications.**

Europe/Rome Please refer to the following link for further information. https://www.icisequynhon.com/conferences/2022/topological/registration.html Scientific Organizing Committee (SOC) Nurit Avraham (Co-chair), Weizmann Institute of Science, Israel Gregory Fiete (Co-chair), Northeastern University, USA Ady Stern, Weizmann Institute of Science, Israel Tran Minh Tien, Vietnam Academy of Science and Technology, Vietnam Jean Tran Thanh Van, Rencontres du Vietnam, Vietnam Quy Nhon - Viet Nam ICTP pio@ictp.it

Activity

10 Jul 2022 - 16 Jul 2022

@ Quy Nhon - Viet Nam

Condensed Matter and Statistical Physics

Topological Quantum Electrons Interacting In-person | (smr 3726)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Doreen Sauleek

Organizer(s): Nurit Avraham (Weizmann Institute of Science ), Gregory A. Fiete (Northeastern University ), Ady Stern (Weizmann Institute of Science ), Tran Thanh Van Jean (ICISE, Vietnam ), ICTP Scientific Contact: Mikhail Kiselev (ICTP)

Europe/Rome The International Union of Pure and Applied Physics will turn 100 years old in 2022. A series of activities will be carried out to celebrate this Centenary. The Centennial Symposium will take place at ICTP, Trieste, on 11, 12 and 13 July 2022. We hope that many people will be able to participate in person, but we understand that some participants will be on Zoom and so the meeting will be fully hybrid. The Symposium will include plenary talks by keynote speakers and other activities, with an emphasis on aspects of the IUPAP history, on developing countries, collaborations among countries, physics education, and many other items consistent with the IUPAP mission. PLEASE NOTE: Application is open until 1st June 2022 (refer to left hand side column, click on "Apply here") Please refer to the following link for further information: https://iupap.org/centennial/ ICTP ICTP pio@ictp.it

Activity

11 Jul 2022 - 13 Jul 2022

@ ICTP

IUPAP Centenary | (smr 3760)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Doreen Sauleek

Organizer(s): ALTARELLI Monica Pepe (CERN), Local Organiser: Sandro Scandolo (ICTP)

Cosponsor(s): International Year of Basic Sciences for Sustainable Developmentiybssd, International Union of Pure and Applied Physicsiupap2

**DEADLINE: 01/06/2022**

Europe/Rome TinyML is a subfield of Machine Learning focused on developing models that can be executed on small, real-time, low-power, and low-cost embedded devices. This allows for new scientific applications to be developed at an extremely low cost and at large scale. The TinyML process starts with collecting data from IoT devices, then training the collected dataset to extract knowledge patterns; these patterns are then packaged into a TinyML model that considers the target microprocessor’s limited resources such as memory and processing power. The resulting model is then deployed on embedded devices where it is used to evaluate new sensor data in real-time. Typically, power requirements are in the mW range and below which enables a variety of use-cases targeting battery operated devices. TinyML represents a collaborative eﬀort between the embedded power systems and Machine Learning communities, which traditionally have operated independently. Topics: • ML general concepts • Introduction to TinyML • Getting started with the TinyML training kit • Examples of TinyML applications • Scientific Applications of ML Registration: There is no registration fee. Priority will be given to the participants from Latin America that are part of the ICTP TinyML Academic Network. Online - ICTP pio@ictp.it

Activity

11 Jul 2022 - 15 Jul 2022

@ Online -

Science, Technology and Innovation

Latin American regional workshop on SciTinyML: Scientific Use of Machine Learning on Low-Power Devices | (smr 3721)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Vijay Janapa REDDI (John A. Paulson School of Engineering and Applied Sciences, Harvard University, USA), Marcelo ROVAI (UNIFEI, Brazil), Local Organiser: Marco Zennaro (ICTP)

Support E-Mail: smr3721@ictp.it

**DEADLINE: 29/06/2022**

Activity

11 Jul 2022 - 15 Jul 2022

@ Kigali - Rwanda

Earth System Physics

ICTP-Africa Joint School on Rainfall and Water Resources Management | (smr 3724)

Secretary: Susanne Henningsen

Organizer(s): Omololu Akin-Ojo (ICTP-EAIFR, Rwanda), Umaru Garba Wali (University of Rwanda), William S. Logan ( ICIWaRM (under the auspices of UNESCO)), Anil Mishra (Intergovernmental Hydrological Programme (IHP), Division of Water Sciences, UNESCO, Paris, France), Phu Nguyen (Univ. California, Irvine USA), Samuel Partey (UNESCO Regional Office for Eastern Africa), Jayakumar Ramasamy (UNESCO Regional Office for Eastern Africa), Soroosh Sorooshian (Univ. California, Irvine USA), ICTP Scientific Contact: Erika Coppola (ICTP)

Europe/Rome An ICTP-EAUMP Hybrid Meeting. You can submit your application for participation in presence or online. This African Mathematical School is also an activity of AMU, supported by CIMPA Organised by the University of Nairobi, to be held at Kenya School of Government, Nairobi, Kenya The school will include: An intensive course in Programming in Python, coordinated by Jean-Baptiste Yunès (Institut de Recherche en Informatique Fondamentale, Université Paris Cité) where the participants will learn to write correct programs. An intensive course in Algorithms, coordinated by Roberto Mantaci (Institut de Recherche en Informatique Fondamentale, Université Paris Cité) where the participants will learn to write efficient programs. An intensive course on SageMath, a free, open-source, Python-based mathematics software system, coordinated by Anna Vanden Wyngaerd (Institut de Recherche en Informatique Fondamentale, Paris and Université libre de Bruxelles) where the participants will learn to apply to Mathematical Research the efficient programming techniques learnt in the two other courses. All courses will be composed of main lectures and applications in the form of exercise sessions or work sessions on machines. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. Nairobi - Kenya ICTP pio@ictp.it

Activity

11 Jul 2022 - 29 Jul 2022

@ Nairobi - Kenya

Mathematics

ICTP-EAUMP School on Mathematical Programming and Algorithms - an African Mathematical School | (smr 3725)

Secretary: Monica Petronela Ancuta, Elizabeth Brancaccio, Viktoriya Lvova, Adriana Pinto

Organizer(s): Roberto MANTACI (Institut de Recherche en Informatique Fondamentale), Jared ONGARO (University of Nairobi), Balazs SZENDROI (University of Oxford), Paul VADERLIND (Stockholm University), Jean-Baptiste YUNES (Institut de Recherche en Informatique Fondamentale), ICTP Scientific Contact: Fernando Rodriguez Villegas (ICTP)

Cosponsor(s): Institut de Recherche en Informatique Fondamentaleirif1, CIMPAcimpa2, EAUMPeaump, Foundation Compositio Mathematicafcm, Uppsala Universityuppsala, African Mathematical Unionamu, University of Nairobiuon2

Support E-Mail: smr3725@ictp.it

**DEADLINE: 01/05/2022**

Europe/Rome An ICTP Hybrid Meeting. The call for applications will be open soon. This activity focuses on building a range of data-related skills that are vital for addressing trans-disciplinary challenges in contemporary research work. The Summer School builds competence in data analysis and security for participants from all disciplines and/ or backgrounds from sciences to humanities. Topics to be covered include principles and practice of research data management, authorship in the 21st century, data curation, data security, Open Science, visualization, machine learning and artificial neural networks. The activity includes practical hands-on sessions on techniques and applications for large-scale data handling, analysis, visualization and modeling on a variety of compute infrastructure including high performance compute platforms/systems. An associated activity focusing on advanced aspects of Data Science will run immediately after this event and requires a separate application. Topics: Introduction to the Unix shell Git R Research Data Management Open and Responsible Research Author Carpentry Information Security Data Visualisation Machine Learning Artificial Neural Networks Computational Infrastructures Grants: A limited number of grants are available to support the attendance of selected participants from developing countries. There is no registration fee. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. Individuals with a background in Extreme sources of data and IoT/Big-Data Analytics can apply to one of the Advanced workshops that run immediately after the school. ICTP ICTP pio@ictp.it

Activity

11 Jul 2022 - 22 Jul 2022

@ ICTP

New Research Areas (High Performance Computing)

The CODATA-RDA Research Data Science Summer School | (smr 3685)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Giambiagi Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Marcela ALFARO-CORDOBA (University of California, USA), Louise BEZUIDENHOUT (DANS, Netherlands), Steve DIGGS (Scripps Institution of Oceanography / UCSD, USA), Sara EL JADID (Queens University, USA), Simon HODSON (CODATA, France), Raphael MENDES DE OLIVEIRA COBE (UNESP, Brazil), Ekpe OKORAFOR (Big Data Academy Accenture Digital - Analytics, USA), Bianca PETERSON (North-West University, South Africa), Robert QUICK (Indiana University, USA), Hugh SHANAHAN (Royal Holloway University, UK), Hannah Margaret SHORT (CERN, Switzerland), Shanmugasundaram VENKATARAMAN (Digital Curation Centre, University of Edinburgh, UK), Local Organiser: Ehimika Ohireime Clement Onime (ICTP)

Cosponsor(s): Committee on Data of the International Science Council (ISC)codata2, The Research Data Alliance (RDA)rda

Support E-Mail: smr3685@ictp.it

The deadline on 1 June is for applications in presence needing financial support and/or visa and the deadline on 24 June for applications to attend online.**DEADLINE: 24/06/2022**

Europe/Rome ICTP awarded its 2021 Dirac Medal and Prize to four physicists whose theoretical work underpinned the 2015 detection of gravitational waves generated by black holes. The 2021 Dirac Medallists are: Alessandra Buonanno, Max Planck Institute for Gravitational Physics, Germany Thibault Damour, Institut des Hautes Études Scientifiques (IHÉS), France Frans Pretorius, Princeton University, USA Saul Teukolsky, Caltech and Cornell University, USA The four physicists have received the medal for establishing the predicted properties of gravitational waves in the curvature of spacetime produced when stars or black holes spiral together and merge. Their work was essential for the detection of gravitational waves from these energetic astronomical events by the Laser Interferometer Gravitational-Wave Observatory (LIGO). Alessandra Buonanno is the second woman to receive the Dirac Medal in its nearly 40-year history. The feature article is available at: https://www.ictp.it/about-ictp/media-centre/news/2021/8/dirac-2021-announce.aspx The 2021 Dirac Medal and Prize Ceremony will take place on Thursday 14 July at 15.00 hrs in the Budinich Lecture Hall @ ICTP. All are welcome to attend. More information and a programme outline will be available in due course. ICTP ICTP pio@ictp.it

Ceremony

14 Jul 2022

@ ICTP

2021 Dirac Medal and Prize Ceremony

Ceremony

27 Jul 2022

@ ICTP

2021 ICTP Prize Ceremony

Address: Strada Costiera 11 34142 Trieste, Italy

Room: Leonardo Building - Budinich Lecture Hall

The 2021 ICTP Prize Ceremony takes place during the 3rd Summer School on Theory, Mechanisms and Hierarchical Modeling of Climate Dynamics: Tropical Oceans, ENSO and their teleconnections | (smr 3727). For more information on the School, see: https://indico.ictp.it/event/9817/

Activity

1 Aug 2022 - 5 Aug 2022

@ Online -

Earth System Physics

Advancing Subtropical Climate Dynamics: Diagonal Convergence Zones, Droughts, and Floods in Past, Present and Future Climates | (smr 3687)

Support E-Mail: smr3649@ictp.it

**DEADLINE: 28/02/2022**

Europe/Rome Vietnam Institute for Advanced Study in Mathematics (VIASM) https://viasm.edu.vn/en/hdkh/viasm-ictp-ss2022 The goal of this school is to introduce graduate students, advanced undergraduate students, young researchers, and interested mathematicians in Vietnam, Southeast Asia, and other countries in Asia, to basics of group representation theory, linear algebraic groups, structure and representation theory of finite groups of Lie type, including an introduction to the Deligne-Lusztig theory. It will also introduce the audience to a number of applications of group representation theory to various areas of mathematics, including number theory, algebraic geometry, and combinatorics. Hanoi - Viet Nam ICTP pio@ictp.it

Activity

9 Aug 2022 - 21 Aug 2022

@ Hanoi - Viet Nam

Mathematics

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Claudio CASTELNOVO (University of Cambridge, UK), Xie CHEN (Caltech, USA), Roderich MOESSNER (MPIPKS Dresden, Germany), Antonello SCARDICCHIO (ICTP, Italy), Local Organiser: Marcello Dalmonte (ICTP)

Support E-Mail: smr3733@ictp.it

**DEADLINE: 15/05/2022**

Activity

4 Sep 2022 - 6 Sep 2022

@ Buenos Aires - Argentina

Earth System Physics

Conference on Regional Climate Modeling and Extreme Events over South America: results from the CORDEX-Flagship Pilot Study | (smr 3745)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Markus ARNDT (University of Vienna, Austria), Angelo BASSI (University of Trieste, Italy), Andrea TROMBETTONI (University of Trieste, Italy), Local Organiser: Rosario Fazio (ICTP)

Support E-Mail: smr3735@ictp.it

Seminar

15 Sep 2022

@ Zoom Meeting + in presence

Strings and Higher Dimensional Theories

HECAP Seminar: Title to be announced

Organizer(s): Roshanka RANASINGHE (IHE ), Alex RUANE (NASA), Robert VAUTARD (IPSL ), Local Organiser: Erika Coppola (ICTP)

Support E-Mail: smr3738@ictp.it

Activity

3 Oct 2022 - 14 Oct 2022

@ ICTP

Science, Technology and Innovation

African Capacity Building Workshop on Space Weather Effects on GNSS | (smr 3741)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Claudio CESARONI (INGV), Patricia DOHERTY (Boston College), Sharafat GADIMOVA (UNOOSA), Joseph OLWENDO (Pwani University), Local Organiser: Bruno Nava (ICTP STI Unit)

Support E-Mail: smr3741@ictp.it

Europe/Rome The Call for Applications will be opened soon. The workshop offers an introduction to evaluated nuclear structure and decay data, by providing an overview of experimental and theoretical nuclear techniques and basic hands-on training in the evaluation procedures employed to produce the Evaluated Nuclear Structure Data File (ENSDF). Reliable evaluated nuclear structure and decay data are of vital importance for basic nuclear physics and astrophysics, as well as for applications in the fields of energy, cultural heritage, environment, human health and space exploration. The worldwide requirements for nuclear structure and decay data are catered by the international network of Nuclear Structure and Decay Data (NSDD) Evaluators, an international group of evaluators created in 1974 under the auspices of the IAEA. The main output of this network is the online ENSDF database and publications in Nuclear Data Sheets. This workshop belongs to a series of ICTP workshops that started in 2003. It has been instrumental in attracting young nuclear scientists to nuclear structure and decay data evaluation and providing them with the basic tools to pursue this activity. Topics: Nuclear experimental techniques Nuclear structure theory XUNDL compilation ENSDF evaluation methodology, procedures and formats Analysis and utility codes Editors and Web tools Databases and online retrieval software Call for Papers: A session will be held for participants to present their own research related to nuclear structure and decay data. Please upload a one-page abstract directly to the on-line application. (Please upload file attachments in .pdf) Prerequisite: Applicants should hold at least a Master’s Degree (M.Sc.) in Nuclear Physics. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

3 Oct 2022 - 14 Oct 2022

@ ICTP

Joint ICTP-IAEA Workshop on Nuclear Structure and Decay Data: Experiment, Theory and Evaluation | (smr 3740)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Giambiagi Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Paraskevi Vivian DIMITRIOU (IAEA), Elizabeth A. McCUTCHAN (Brookhaven National Laboratory), Local Organiser: Ralf Kaiser (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3

Support E-Mail: smr3740@ictp.it

**DEADLINE: 30/06/2022**

Europe/Rome An ICTP-IAEA Hybrid Meeting. You can submit your application for participation in presence or online. Citizen Science involves the public in scientific projects and can play an important role in generating large datasets. The convergence of data-driven Citizen Science projects and machine learning techniques can help tackle scientific and societal challenges. The lectures cover the following topics: Introduction to Citizen Science Introduction to Open Science Basic concepts/tools for Machine Learning techniques Challenges and opportunities of using Machine Learning in Citizen Science Ethical aspects of Machine Learning in Citizen Science Machine Learning for nuclear science, technology and applications Using Machine Learning and Citizen Science to address the UN Sustainable Development Goals Call for Contributed Abstracts: In the application form, all applicants are encouraged to submit an abstract. A limited number of abstracts will be selected for poster presentation. If applicable (see Grants section below), presenters may be awarded a grant to support their in-person attendance. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries and to those submitting an abstract. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

3 Oct 2022 - 7 Oct 2022

@ ICTP

Science, Technology and Innovation

Joint ICTP-IAEA Advanced School/Workshop on Machine Learning in Citizen Science | (smr 3739)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

24 Oct 2022 - 28 Oct 2022

@ ICTP

Joint ICTP-IAEA Nuclear Knowledge Management School | (smr 3744)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Alesia IUNIKOVA (IAEA, Austria), Maria Elena URSO (IAEA, Austria), Local Organiser: Claudio Tuniz (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3

Support E-Mail: smr3744@ictp.it

**DEADLINE: 19/06/2022**

Activity

31 Oct 2022 - 7 Nov 2022

@ Seoul - Republic of Korea

Quantitative Life Sciences

ICTP-KIAS School on Statistical Physics for Life Sciences | (smr 3746)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Erica Sarnataro

Organizer(s): Changbong Hyeon (KIAS), Junghyo Jo (Seoul National University), ICTP Scientific Contact: Antonio Celani (ICTP)

Activity

7 Nov 2022 - 11 Nov 2022

@ Buenos Aires - Argentina

Science, Technology and Innovation

International Workshop on Machine Learning for Space Weather: Fundamentals, Tools and Future Prospects | (smr 3750)

Secretary: Elizabeth Brancaccio

Organizer(s): Patricia Doherty (Boston College), Sharafat Gadimova (UNOOSA), María Graciela Molina (FACET-UNT / CONICET), Yenca Migoya Orué (ICTP), ICTP Scientific Contact: Bruno Nava (ICTP STI Unit)

Activity

7 Nov 2022 - 11 Nov 2022

@ Online -

Ethical and Societal Challenges of Machine Learning | (smr 3749)

Room: Online

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Teresa Scantamburlo (UniVE), Roberto Trotta (SISSA), Antonio Celani (ICTP), Matteo Marsili (ICTP), Local Organiser: Marco Zennaro (ICTP)

Support E-Mail: smr3749@ictp.it

Europe/Rome Prerequisite: for the selection process in this activity participation in "Climate Data and Seasonal Forecast Analysis Techniques | (smr 3691)" is a prerequisite. Harare - Zimbabwe ICTP pio@ictp.it

Activity

7 Nov 2022 - 11 Nov 2022

@ Harare - Zimbabwe

Earth System Physics

Activity

28 Nov 2022 - 9 Dec 2022

@ ICTP

New Research Areas (High Performance Computing)

9th Workshop on Collaborative Scientific Software Development and Management of Open Source Scientific Packages | (smr 3696)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Alessandro Corbetta (Eindhoven University of Technology), David Grellscheid (University of Bergen), Local Organiser: Ivan Girotto (ICTP)

Support E-Mail: smr3696@ictp.it

Europe/Rome The target audience include radiotherapy dosimetry audit providers, medical physicists involved in audits willing to expand their knowledge or interested in setting up a radiotherapy dosimetry audit programme. Participants should have clinical experience and a basic background in dosimetry audits in radiotherapy. Topics: Status and global availability of radiotherapy dosimetry audits Accuracy requirements and Quality Assurance in radiotherapy Dosimetry audit types and methodologies IAEA guidelines for establishing national dosimetry audit network – structure, operation and resources Basics of passive solid-state dosimetry (TLD, OSLD, RPLD, film) systems IAEA methodologies of remote dosimetry audits: Steps 1 to 9, on-site End-to-End 3D CRT and IMRT audits including practical sessions Uncertainty estimation Reporting results and following up results out of tolerance Quality management system for dosimetry audits Novel approaches to auditing Speakers: A. ALVES, ACDS, Australia C. CLARK, NPL – RTTQA, UK N. JORNET, Hospital de la Santa Creu i Sant Pau, Spain P. KAZANTSEV, IAEA, Austria Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

28 Nov 2022 - 2 Dec 2022

@ ICTP

Joint ICTP-IAEA Workshop on Radiotherapy Dosimetry Audit Methodologies | (smr 3753)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Giambiagi Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Mara SEVERGNINI (Trieste Hospital), Jamema SWAMIDAS (IAEA), Local Organiser: Renato Padovani (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3

Support E-Mail: smr3753@ictp.it

**DEADLINE: 31/07/2022**

Activity

5 Dec 2022 - 16 Dec 2022

@ ICTP

Quantitative Life Sciences

ICTP-ICTS Winter School on Quantitative Systems Biology | (smr 3755)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Budinich Lecture Hall (LB)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Vijay Balasubramanian (University of Pennsylvania), Pratik Chaudari (University of Pennsylvania), Guido Sanguinetti (SISSA), Matteo Marsili (ICTP), Local Organiser: Antonio Celani (ICTP)

Support E-Mail: 3755@ictp.it

Activity

5 Dec 2022 - 9 Dec 2022

@ Cali, Armenia - Colombia

Science, Technology and Innovation

Optics & its applications | (smr 3756)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Narine Gevorgyan (A. Alikhanyan National Laboratory, Yerevan, Armenia), Maria Sagrario Millan (Universidad Politecnica de Cataluna, Terrassa, Spain), Efrain Solarte (Universidad del Valle, Cali, Colombia), Liliana Tirado (Quindio University, Armenia, Colombia), ICTP Scientific Contact: Joseph Niemela (ICTP)

Support E-Mail: smr3756@ictp.it

Activity

12 Dec 2022 - 16 Dec 2022

@ ICTP

Joint ICTP-IAEA Workshop on Physics and Technology of Innovative Nuclear Energy Systems | (smr 3700)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Kastler Lecture Hall (AGH)

Secretary: Monica Petronela Ancuta, Viktoriya Lvova, Adriana Pinto

Organizer(s): Chirayu Batra (IAEA), Vladimir Kriventsev (IAEA), Joseph Mahanes (IAEA), Local Organiser: Nicola Seriani (ICTP)

Cosponsor(s): International Atomic Energy Agencyiaea3

Support E-Mail: smr3700@ictp.it

ICTP - Strada Costiera, 11
I - 34151 Trieste Italy
(+39) 040 2240 111
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ICTP is governed by UNESCO, IAEA, and Italy, and is a UNESCO Category 1 Institute

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Seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Quantum Cellular Automata, Tensor Networks, and Area Laws

Seminar

Strings and Higher Dimensional Theories

HECAP Seminar: Bootstrap bounds on AdS quantum gravity

Seminar

Strings and Higher Dimensional Theories

HECAP Seminar: Stringy AdS3/CFT2 correspondence

Seminar

Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): New frontiers in quantum simulation and computation with neutral atom arrays

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Strings and Higher Dimensional Theories

HECAP Seminar: Non-semisimple TQFTs and BPS q-series

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Strings and Higher Dimensional Theories

HECAP Seminar: From BPS crystals to BPS algebras: constructions, representations, and applications

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Strings and Higher Dimensional Theories

HECAP Seminar: The analytic bootstrap at large N

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Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): Entanglement spreading after local and extended excitations

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Strings and Higher Dimensional Theories

HECAP Seminar: The Unreasonable Effectiveness of Higher-Derivative Supergravity in Holography

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Mathematics

ICTP/IGAP seminar on Algebraic Geometry: The sl(2) action on the Chow ring of an abelian variety

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Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 1: "What Gravitational Waves tell us about the Universe"

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Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 2: "The Making of High-Precision Gravitational Waves"

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Salam Distinguished Lectures 2022 by Prof. Alessandra Buonanno: Lecture 3: "Gravitational Waves as Probes of Gravity and Fundamental Physics"

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Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): The role of non-conservative interactions in nonequilibrium complex systems

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Quantitative Life Sciences

QLS Seminar - Data-driven Modeling of Animal Behavior

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Phenomenology of Particle Physics

HECAP Seminar: Dark matter scattering in astrophysical media: collective effects

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Quantitative Life Sciences

QLS SEMINAR - Activity driven pattern formation in microtubule network and cell membrane

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Mathematics

ICTP/IGAP seminar on Algebraic Geometry: Moduli spaces of sheaves, Vafa-Witten formula and virtual invariants

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Strings and Higher Dimensional Theories

HECAP Seminar: Corrections to 3d class R theories and 4d central charges from higher-derivative supergravity

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Mathematics

ICTP/IGAP seminar on Algebraic Geometry: Representations of the diagonal for moduli spaces of sheaves

Colloquium

ICTP Colloquium by Prof. Stavros Katsanevas and Prof. Giancarlo Cella: EGO and VIRGO: The Past, Present, and Future of the Physics of Gravity Waves

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Condensed Matter and Statistical Physics

CMSP News and Views Seminar Series: First-Principles based Modelling of Electrocatalysis Beyond the Potential of Zero Charge

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Condensed Matter and Statistical Physics

CMSP Seminar (Joint ICTP/SISSA Statistical Physics): From conserved quantities to the emergence of slow relaxation and steady currents

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